The Institutional Review Board 1) Reviews only studies in animals 2) Reviews clinical studies (in humans) 3) Is constituted by the drug company to assure the safety of the investigational drug 4) Assures investigators do not have conflicts of interest A. "1,2 and 3 are correct"
B. 1 and 3 are correct
C. 2 and 4 are correct
D. ONLY 4 is correct
E. ALL are correct

C. 2 and 4 are correct

Explanation:

Institutional review board protects the rights of human research.

They are involved with reviewing of all research that involves the use of humans before it is conducted and protect the welfare of the human involve and the privacy.

The member of the board must be 5 and above and it include people from different fields that are knowledgeable and will provide findings on human research. A non scientist is also involve and someone from other field.

2 and 4 is correct

i think the miocene epoch spans the time from 23 million to 12 million years ago.