Which statement from the passage above best sums up the writer's main argument?

When you don’t understand a concept during the lecture, it’s to flag it in your notes and leave a blank space so you can fill in more

Walking is not the most exciting form of exercise a person can take on for fitness. yet it is low impact and requires no fancy equipment. that makes walking a simple activity for those new to exercise. walking is less likely than other exercises to cause injury to leg tendons and muscles. all it requires is a good pair of sneakers-no cables, stylish outfits, or weights required. of course, a person could increase the benefit of a workout by adding weights or speed walking. identify the main idea of this paragraph. walking is a difficult and safe exercise for beginners. walking is an easy and safe exercise for beginners. walking is a boring and dangerous form of exercise. walking is an exciting and very effective form of exercise.

Iwanna listen to music but i have a migraine. are there any songs that would be good for me to listen to that wont make the migraine worse