Which is the best revision of the concluding sentence?
read the excerpt from a student's essay,
putting on a bike helmet is the most important part of
preparing for a bicycle ride. helmets protect the brain and
neck. they have been proven to reduce injuries by over 50
percent. it is important that helmets fit properly and that
fasteners work correctly. i wear a helmet with a spider-web
design
bike helmets are important because they protect riders
when worn properly.
bike helmets with spider-web designs are the most
effective.
bike helmets have been known to cause accidents,
bike helmets are expensive, but they are a good
investment
save and exit