Should I communicate the date of the meeting to all the members?

Answer: Option D

Communicate : share or exchange information, news, or ideas.
Yield : produce or provide (a natural, agricultural, or industrial product).
Conceal : not allow to be seen; hide.
Refrain : stop oneself from doing something.
Withhold : suppress or hold back (an emotion or reaction).

Antonym of Communicate is Withhold