After Muhammad's death, Muslim leaders spread Islam by: OA. refusing to trade with any country not led by Muslims.
O B. forcing Christians and Jews to change their religion.
O C. uniting the competing Sunni and Shiite tribes.
OD. using a powerful military to conquer new territories.

it would be c, Muslims spread Islam through trading w/other countries and bc there is none of that c is something that muslims did as well

Explanation:

the answer is 1.. i think

the puritans were a group of people who grew discontent in the church of england the common unity strengthened the community.