Answer:
C. Disclose their potential COI and may answer questions, but recuse themselves from voting
Step-by-step explanation:
Disclose their potential conflict of interest and may answer questions, but recuse themselves from voting because the conflict of interest management plan aims at providing procedures or extras steps to be taken to reduce the risk of bias when a conflict of interest is disclosed.
A researcher's membership on an advisory board with an organization sponsoring research can create a conflict of interest because it may be difficult for the researcher to appear neutral, as the researcher may have an interest in the research's success