Breaking down the expression 'Break O break open':

The expression 'Break O break open' suggests that barriers of a dirty environment must be broken. Let's analyze this answer in detail.

Importance of breaking barriers in a dirty environment:

Breaking barriers in a dirty environment is essential for several reasons. A dirty environment can have negative impacts on individuals, communities, and ecosystems. It can lead to various health issues, pollution, and degradation of natural resources. Hence, it becomes crucial to break the barriers of a dirty environment to ensure a clean and healthy living space for everyone.

Explanation of the given options:

a) Barriers on the road:
This option does not align with the given expression. The expression does not specifically refer to barriers on the road, but rather to barriers in a dirty environment.

b) Barriers of garbage heap:
While a garbage heap can be a part of a dirty environment, the expression does not specifically refer to barriers of a garbage heap. It suggests breaking barriers in a broader sense, encompassing all aspects of a dirty environment.

c) Barriers of dirty environment must be broken:
This is the correct answer. The expression 'Break O break open' suggests breaking barriers of a dirty environment. It emphasizes the importance of dismantling the obstacles that contribute to a dirty environment, whether it be litter, pollution, or poor waste management practices.

d) None:
This option is incorrect as it negates the given expression without providing any alternative explanation.

In conclusion, the expression 'Break O break open' suggests that barriers of a dirty environment must be broken. It encourages taking action to overcome the obstacles that contribute to a dirty environment, ensuring a cleaner and healthier living space for all.