Final answer:
The synonym for 'consent' is 'agreement'. Consent is about giving permission or agreeing to something, in contrast with denial or refusal.
Step-by-step explanation:
The correct synonym for consent as a noun is A) Agreement. Consent means to give permission for something to happen or agreement to do something. It is quite the opposite of denial, objection, or refusal, which all imply a negative response. In certain contexts, such as legal or healthcare decisions, parents can provide consent on behalf of their children, since children are generally not considered competent to provide consent for themselves. Moreover, in political philosophy, the concept that citizens will consent to be governed so long as the government protects their natural rights is fundamental to social contract theory.