DrGeorge Clemmons Studies the Nature of Friendship Bonds Between Children

Dr.George Clemmons studies the nature of friendship bonds between children under the age of 8 years old.Since children are a vulnerable population,George must take extra precautions to ensure his research meets ethical standards.Which of the following conditions must George meet in order to avoid unethical research conduct?

A) George must obtain written permission from the legal guardian(s) of the children he plans to study.
B) George must ensure he is never alone with the children he is studying.
C) George must follow standard ethical principles to protect his child participants from harm.
D) Both A and C.
E) Both B and C.