What provides the best evidence of environmental influence on intelligence?

   Children moved from a deprived environment into an intellectually enriched one show gains in intellectual development

Explanation:  According to the research of psychologists, besides the factors of genetics, environmental influence plays an important role in the development of intelligence. Modern science claims that these are healthy habits such as healthy nutrition and other daily activities that contribute to the development of intelligence. This also includes education, adequate parental care, accessibility to various facilities that contribute to learning and development. All this is possible in an enriched environment where there are conditions for that, while all this is less possible, i.e it is limited in deprived environments. In the enriched environments, because of all of the above, there is lower prevalence of various diseases that can also impede adequate, that is, better intellectual development. In addition, in deprived environments where parental care lacking due to, for example, difficult social conditions, children are more prone to crime and thus deprived of activities that foster intelligence development. This means that in deprived environments, there is a greater presence of alcohol, drugs, etc., which act exactly at the opposite of that which promotes the development of intelligence.

the correct answer is d