The correct answer is C) Muslims.
The religious groups that faced increased discrimination In the wake of the terrorist attacks on September 11, 2001, were Muslims.
In the aftermath of the September 11, 2001, terrorist attacks, American citizens were shocked. The news broadcasted that the attacks were made by the terrorist group of Al-Qaeda, led by Osama bin-laden, a Muslim leader from Afghanistan. So in the United States and after those painful moments of September 11, people started to fear and discriminate Muslim people that lived in the US.
