Growth of a child is mainly related to

Concept: Growth and development are related but distinct terms in child psychology. Growth is the quantitative, measurable increase in the physical dimensions of the body — height, weight, and the size of organs — and it is a biological process that slows down and stops after a certain age. Development is broader and qualitative: it covers the continuous, lifelong changes in a child's physical, cognitive, social, emotional, and moral capacities.

Application: The question asks what "growth" is mainly related to. Since growth specifically denotes physical, structural change in body size, it corresponds to Physical Development — increase in height, weight, and bodily proportions — not to the broader behavioural or attitudinal dimensions of development.

Cross-check — contrasting the other dimensions of development:

• Moral development concerns the formation of values, conscience, and a sense of right and wrong — a behavioural dimension of development, not the physical increase that defines growth.

• Social development concerns learning to interact and form relationships with others — again a behavioural dimension, distinct from the measurable physical change of growth.

• Emotional development concerns the ability to recognise, express, and regulate feelings — a psychological dimension, not the quantitative physical change growth refers to.

Result: Physical Development is therefore the option that growth is mainly related to.