The General Assembly shall meet every year in regular session commencing on the Tuesday of the third week in September, counting from the first week that contains at least one working day.

The General Assembly is the main deliberative body of the United Nations, where all member states come together to discuss and make decisions on a wide range of international issues. It meets every year in regular sessions, and the schedule for these sessions is determined by a specific day of the week and month. The correct answer to the question is option 'C', which states that the regular sessions of the General Assembly begin on the third Tuesday in September every year.

The General Assembly Regular Sessions
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The regular sessions of the General Assembly are the most important meetings of the year for the United Nations. During these sessions, world leaders gather at the UN Headquarters in New York to address global challenges, share their perspectives, and work towards collective solutions. These sessions provide a platform for member states to engage in diplomatic negotiations, present their views on various issues, and participate in decision-making processes.

The Schedule of Regular Sessions
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The regular sessions of the General Assembly have a fixed schedule that is followed every year. The question asks for the specific day on which these sessions begin. Let's examine the options provided:

a) First Monday in March every year
b) Fourth Monday in September every year
c) Third Tuesday in September every year
d) Second Tuesday in March every year

The correct answer is option 'C', which states that the regular sessions of the General Assembly begin on the third Tuesday in September every year. This means that member states start their deliberations and discussions on global issues on the third Tuesday of September.

Reasoning for the Correct Answer
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The General Assembly sessions typically begin in September to coincide with the opening of the UN General Debate, where world leaders deliver their speeches. The third Tuesday in September is chosen as the starting date to allow for the arrival of all member states' delegations and to give them enough time to prepare and coordinate their positions on various agenda items.

The significance of the General Assembly sessions beginning on the third Tuesday lies in the need for member states to have ample time to engage in pre-session consultations, negotiate draft resolutions, and coordinate their positions with other countries. By starting on the third Tuesday, the General Assembly ensures that all member states have had sufficient time to gather and prepare for the intense diplomatic discussions that lie ahead.

In conclusion, the regular sessions of the General Assembly, the main deliberative body of the United Nations, begin on the third Tuesday in September every year. This schedule allows member states to engage in pre-session consultations, negotiate resolutions, and coordinate their positions to address the global challenges of our time.