Which of these events occurred during the ghana empire?
a. timbuktu was developed into a center of learning.

b. islam was introduced into the west african region.

c. moroccan invaders conquered the empire.

d. a large amount of technology was developed

The answer is "B.Islam was introduced into the West African region."

Africa was the first continent, that Islam spread into out of Arabia in the mid seventh century. Right around 33% of the world's Muslim populace dwells today in the mainland. It was assessed in 2002 that Muslims establish 45% of the number of inhabitants in Africa. Islam has a vast nearness in North Africa, West Africa, the horn of Africa, the Southeast and among the minority yet noteworthy outsider populace in South Africa.  

The primary West Africans to be converted  were the tenants of the Sahara, the Berbers, and it is by and large concurred that constantly 50% of the tenth century, the Sahara had progressed toward becoming Dar al-Islam that is the nation of Islam.

the minoan civilization flourished in the middle bronze age on the island of crete located in the eastern mediterranean from c. 2000 bce until c. 1500 bce. with their unique art and architecture, and the spread of their ideas through contact with other cultures across the aegean, the minoans made a significant contribution to the development of western european civilization as it is known today. labyrinth-like palace complexes, vivid frescoes depicting scenes such as bull-leaping and processions, fine gold jewelry, elegant stone vases, and pottery with vibrant decorations of marine life are all particular features of minoan crete.  

so basically their unique way of ding arts, as well as architecture.