In the sample persuasive essay introduction, which sentence is the Controversy or argument?

Question

A. 3.The best way to combat insomnia is to disconnect from electronic devices an hour before bedtime...
B. 1. Seven out of ten high school students suffer from insomnia and don't know how to better their...
C. 2. Many parents disagree on whether students should disconnect from electronic devices to better...

Answer 1

C. 2. Many parents disagree on whether students should disconnect from electronic devices to better combat insomnia.