Walking is not the most exiting form of exercise a person can take on for fitness.Yet it is low impact and requires no fancy equipment.That makes a 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 weight required.Of course,a person could increase the benefit of a workout by adding weights or speed walking.

Identify the main idea in this paragraph.

A.)Walking is a difficult and safe exercise for beginners.

B.)Walking is an easy and safe exercise for beginners.

C.)Walking is a burning and dangerous form of exercise.

D.)Walking is and exiting and very effective form of exercise.