From “Fixing a Flat Bike Tire”
By: Rob Baur
(1) First, never ride your bike if it has a flat tire. (2) Riding around on a flat tire is not only difficult, but also dangerous—for both you and your bike. (3) Riding a bike with a flat tire can cause you to fall and injure yourself and may damage your bike’s wheel. (4) It’s less complicated and less expensive to fix a flat tire than it is to replace an entire wheel.
Which sentence states the main idea of this paragraph?
A) sentence (2)
B) sentence (1)
C) sentence (3)
D) sentence (4)