(A) Pact
(B) ** Mandate
(C) Diktat
(D) Treaty
EXPLANATIONS BELOW
Concept note-1: -official permission or the right to do something, usually given as the result of a vote: mandate to do sth The government claimed that it had a mandate to raise taxes.
Concept note-2: -: to officially require (something) : make (something) mandatory : order. a law mandating recycling. also : to direct or require (someone) to do something.
Concept note-3: -He won the election so convincingly that he believed he had been given a mandate for change/reform.
Concept note-4: -OTHER WORDS FOR mandate 3 fiat, decree, injunction, edict, ruling.
Concept note-5: -The most prominent examples of congressional mandates are environmental regulations, such as the Clean Air and Clean Water Acts, which require state governments to enforce certain prescribed standards.