Answer:
D. Executive function testing
Explanation:
Executive functions is the ability of the brain to perform complex activities such as how to maintain certain types of behavior and proper mental planning.
The executive functions comprises of domains such as mental flexibility, verbal fluency, planning, working memory, inhibitory control, and processing speed. This domains sums up the executive functions.
However the executive function testing employs techniques have been used to explore whether there are basic areas of understanding about the physical world that appear to be innate and built into the human brain.
It is a true statement that when the poor lost their jobs and homes in rural area, they went to newly industrialized areas where they often lived in slums. The correct option among all the options that are given in the question is the first option or option "a". The poor had to make do with any kind of work in the newly industrialized areas to make their living.