Many people try to resist reforms in the society.

Answer: Option B

Resist : try to prevent by action or argument.
Repel : drive or force (an attack or attacker) back or away.
Welcome : an instance or manner of greeting someone.
Accept : consent to receive or undertake (something offered).
Fight : take part in a violent struggle involving the exchange of physical blows or the use of weapons.

Antonym of Resist is Welcome