Concept:The word 'Defer' means to postpone or put off something to a later time.Explanation:'Defer' and 'Delay' both mean to cause something to happen later than planned. They are synonyms.The other options are not synonyms: 'Decline' means to refuse, 'Reject' means to refuse to accept, and 'Proceed' means to continue or move forward.Answer:Delay (Option B)