Answer:
The research involves the use of educational tests
Explanation:
The sub part D is a part of regulations that created by the government in order to protect children from research's related activities.
For most researchers, only consenting adults are allowed as a part of test subjects. But, according to sub part D, children can be used if the research involves educational tests because it <u>have very low risk, and it might benefit the children</u> in the long run.
The measure of the amount of heat in the air in a given place is called Temperature.
<span>French for “Let (people) do (as they choose).</span>