Hello!
The correct answer is "They allow people to study from home and on a schedule that fits their lives."
Online courses are excellent for difficult schedules, and they are often very flexible.
Online courses are typically not easier courses, so they are not suited for people who find traditional ones difficult.
Not all online courses provide tutors for their students, so this cannot be the correct answer either.
Online courses also are not free, so this is also not the correct answer.
I hope this helps you! Have a lovely day!
- Mal