Who was a large Christian population?

A. Lebanon

B. Syria

C. Israel

D. Iran

The correct answer is

Lebanon

Explanation:

Lebanon is officially known as the Lebanese Republic, is a country in Western Asia. It is bordered by Syria to the north and east and Israel to the south, while Cyprus is west across the Mediterranean Sea.

Almost 39% of Lebanon population is christian.

Syria has 11.2% of christian population

Israel has 2% Christians

and Iran has 0.6%