Which of the following statements is/are true?
1. People differ from each other due to hereditary and environmental factor.
2. A child may become skillful or disabled due to this factor.
3. A child should fulfill his own needs.
4. There is no requirement of studying people with special need.

A. 2 and 3

B. 2 and 4

C. 1 and 2

D. None of these

Answer: Option C