Which of the following statements are correct regarding child development ?
(I) A child's cognitive and social development depends only on the environment
(II) Heredity is the only factor influential for the development of a child
(III) Heredity and environment are inter-related in development of a child
(IV) The relative effects of heredity and environment vary in different areas of child development
Options :

Correct option is C

Statements III and IV correctly capture the complex nature of child development. Both heredity and environment are crucial and interrelated factors influencing a child's growth. Additionally, the impact of heredity and environment varies across different developmental areas, making these statements accurate.