Question

Although about 99 percent of the more than 50 million Turks are Muslims, the republic founded by Mustafa Kemal Ataturk in 1923 is resolutely secular.

• A. Although about 99 percent of the more than 50 million
• B. Although about 99 percent of over 50 million of the
• C. Although about 99 percent of more than 50 million
• D. Despite the fact that about 99 percent of more than 50 million.

Answer 1

The correct option is A

Although about 99 percent of the more than 50 million

If we use "the," we are saying that there are only 50 million Turks in the whole world; if we don't use "the," we are saying that there are possibly more than 50 million Turks in the world.
So the answer is option (a).