HAGGLE:

Answer: Option C

Postpone :A cause or arrange for (something) to take place at a time later than that first scheduled.
Accept :Consent to receive or undertake
Reject :Dismiss, unacceptable, or faulty
Bargain :Negotiate the terms and conditions of a transaction.
HAGGLE: :Dispute or bargain persistently, especially over the cost of something.

Synonym of HAGGLE is Bargain.