Introduction:
Planning is an essential managerial function that involves setting goals, defining strategies, and determining the necessary actions to achieve those goals. It is closely connected with creativity and innovation as it requires thinking outside the box and coming up with new ideas and approaches. Additionally, planning involves making decisions to allocate resources effectively and prioritize activities. Therefore, all the given statements are true, and the correct answer is D - None of the above.

Explanation:
a) It is one of the basic managerial functions:
Planning is indeed one of the basic managerial functions. The other functions include organizing, staffing, directing, and controlling. Planning provides a foundation for these functions as it sets the direction and goals for the organization. It involves analyzing the current situation, determining objectives, and developing strategies to achieve those objectives. Without proper planning, it would be difficult to accomplish organizational goals efficiently.

b) Planning is closely connected with creativity and innovation:
Planning requires creativity and innovation to develop effective strategies and solutions. In order to overcome challenges and achieve goals, managers need to think creatively and come up with innovative ideas. They need to consider different options, evaluate alternatives, and select the most suitable course of action. Creativity and innovation play a crucial role in generating new ideas, exploring different possibilities, and finding unique approaches to problem-solving.

c) It requires taking decisions:
Planning involves making decisions about various aspects of the organization. Managers need to decide on the goals and objectives to be pursued, the strategies to be adopted, and the resources to be allocated. They need to analyze the internal and external environment, evaluate different options, and choose the best course of action. Decision-making is an integral part of the planning process as it determines the direction and actions to be taken.

Conclusion:
In conclusion, all the given statements about planning are true. It is a fundamental managerial function that involves setting goals, developing strategies, and making decisions. Planning is closely connected with creativity and innovation as it requires thinking outside the box and coming up with new ideas. Therefore, the correct answer is D - None of the above.