The rub al khali (empty quarter) lies near the border between saudi arabia and:
a. israel.
b. iraq.
c. yemen.
d. dubai.

The answer is (c.) Yemen
The Rub al Khali or so-called Empty Quarter lies near the border between Saudi Arabia and Yemen. It also lies on the borders of Oman and the United Arab Emirates. It is the largest contiguous sand desert in the world. The desert is a thousand kilometers long and 500 kilometers wide.

They immigrated for religious freedom

Answergranulation;