We hope you agree that C is correct. "Consent," "assent," "subscribe," and "acquiesce" refer to agreeing with what has been proposed. "Acquiesce" implies unvoiced acceptance or restraint from voicing opposition, as in "acquiesced to the group's wishes." "Consent" involves the will or feelings and indicates compliance with what is requested or desired, as in "consented to their daughter's going." "Assent" implies an act involving understanding or judgment and applies to opinions or to things that are proposed, as for example, "voters assented to the proposal." "Subscribe" implies not only consent or assent but approval and active support, such as "subscribes wholeheartedly to the idea."