Which of the following is true regarding Iran's ethnic identities?

A. The large number of Persians in the country are descendants of the Armenoid race.
B. Though the country is composed of diverse ethnic groups, it is void of tribal groups.
C. It is host to the second?largest Afghan refugee population.
D. The Shi'i Kurds have their own province, Kurdistan.
E. Sunni Kurds are considered the most powerful group in the country.

C