Concealing from Individuals That They Are Being Studied and Deceiving

Concealing from individuals that they are being studied and deceiving individuals with false information during a study:

A) are forbidden by codes of ethics.
B) are sensitive areas and researchers must take care to ensure that participants are not harmed when such activities take place.
C) require that participants be paid.
D) could be used as a basis to revoke a counselor's license.
E) are activities that would never be undertaken by professional researchers because studies can always be completed without resorting to such negative tactics.