Which of the following about the expansion of islam is not true?

missionaries joined trade caravans in order to spread islam.
muhammad united many tribes of arabia after conquering mecca.
expansion was a slow process because it was met with strong opposition from the islamic world.
the nations of europe were threatened by muslim expansion and sought to stop it.

The correct answer is C) expansion was a slow process because it was met with strong opposition from the Islamic world.

The statement that is not true about the expansion of Islam is "expansion was a slow process because it was met with strong opposition from the Islamic world."

One of the ways that Islam expanded through many territories was conquering and trade. Muslim missionaries used the caravans that transported products to other countries to go there and teach Islam principles with success. Islam started to expand to such a degree that European nations -mostly Christians- were afraid that Islam influenced people. The Islamic influence also reached African countries and the religion was accepted in those places. The teachings of the Quoran were spread form that time and nowadays is the dominant religion in the Middle East and many regions of Africa.