Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

As part of the Duties to Clients standard, members and candidates must:
Option A:document client financial constraints after an initial investment action.
Option B:maintain an equal balance of interests owed to their clients and employers.
Option C:deal fairly and objectively with all clients when engaging in professional activities.

Answer: C