How did technologies like the dhow, the lateen sail, and mapping the monsoon winds influence Swahili culture in East Africa? a. better navigation allow them to create colonies in the Indian ocean
b. silk road trade helped them build a massive empire
c. travel brought Christian missionaries to the region
d. Arab traders mingled with the native population, creating a new afro-arab language and people

Option: d. Arab traders mingled with the native population, creating a new afro-arab language and people.

Explanation:

Africa is a diverse continent with a variety of ethnic groups. Arabs settle in Africa through conducting trades. The Swahili ethnic group grew in the region of the East coast of Africa when Arab traders began to settle there for trade as they gain wealth form it.

The dhow with two lateen sail to navigate in the Indian Ocean with sailors from the Arabian Peninsula, East Africa, India, and China.  

a.   it resulted in widespread unemployment.