Which of the following are major principles of leading?
1. Principle of motivation
2. Principle of continuous development
3. Principle of harmony of objectives
4. Principle of open competition
5. Principle of communication clarity
Select the correct answer:

A. 1, 2, 3, 5

B. 1, 2, 3, 4, 5

C. 1, 3, 4, 5

D. 1, 3, 5

Answer: Option D