Answer:
B. Tribal Idol worshippers
Step-by-step explanation:
The holy prophet Muhammad (S.A.W) and his early followers fight against tribal people who worship Idols before he died because all the tribes were against the Holy prophet Muhammad (S.A.W) and his new religion Islam. These tribes feared the increasing power of the new religion practiced by large number of Arab people so for stopping this spreading they fought many wars with the holy prophet Muhammad (S.A.W) and his early followers.