What Is the Meaning of Following Term

What is the meaning of following term:
-Former name of Iran

A) Iran's parliament.
B) The Hindu belief of rebirth.
C) One name for the Buddhist holy books.
D) The Shah's secret service agency.
E) Islam's holy book.
F) A follower of Islam.
G) Persia.
H) The fullness of being, which no human words can describe.
I) The monarch of Iran.
J) The most significant belief in Hinduism that refers to actions or deeds.
K) The lowest level on the social structure in India.
L) The totality of God's teachings in Islam.
M) Holding fast to the truth.
N) A person who identifies with ethnic groups native to the Arabian Peninsula.
O) India's former official social structure.