Is the specialization of function in one hemisphere of the brain or the other

Lateralization is the specialization of function in one hemisphere of the brain or the other.

Explanation:

The brain comprises of two hemispheres: the right hemisphere and the left hemisphere. The right hemisphere and the left hemisphere of the brain are specialized to perform different functions. This speciality of the hemispheres to perform different functions is termed as lateralization. Apart from differences in function, the hemisphere also differs in structures.  For example, The musical skills in a person come from the right hemisphere whereas activities like movements of the hand are controlled by the left hemisphere of the brain.

it is a learned trait

explanation:

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.