GRATIFY

Answer: Option C

Appreciate : recognize the full worth of.
Frank : open, honest, and direct in speech or writing, especially when dealing with unpalatable matters.
Indulge : allow oneself to enjoy the pleasure of.
Pacify : quell the anger, agitation, or excitement of.
Gratify : indulge or satisfy (a desire).


Synonym of Gratify is Indulge