Задание 13 ЕГЭ, английский язык: Полное понимание информации в тексте

What is the best summary of the advice given in paragraph 2?

1)  Put regular exercise into your schedule on the phone.

2)  It’s vital to make a plan for an efficient workout.

3)  A trainer can make your time exercising more effective.

4)  A short workout is better than a longer session.