Which of These Statements Concerning Guidelines for Consenting Children for Research

Which of these statements concerning guidelines for consenting children for research participation are true?

A) No infant or child may be used in research if he or she refuses treatment.
B) Emancipated minors may consent for themselves.
C) Coercion is wrong, but begging a child to participate is acceptable.
D) An 11-year-old should be asked to assent for research participation.
E) If infants and children participate in research, they should sign a consent form.
F) Infants cannot refuse to participate in research if their parents consent.