Which of the following is true about blind spots?

• A. They can be eliminated by mirrors alone
• B. They require no attention on straight roads
• C. They can be mitigated by checking mirrors and over-the-shoulder
• D. They do not affect safety

Answer: (C)

Blind spots are the parts of the road you can’t see in your mirrors because of the vehicle’s size and mirror placement. Because of that, you can’t rely on mirrors alone to know everything around you. The safest way to cover those areas is to combine checking your mirrors with a quick head turn over your shoulder before changing lanes or merging. That shoulder check gives you a direct view of the lane next to you and behind you, catching any vehicle that might not show up in your mirrors.

So this choice is best because it reflects how to effectively reduce the danger of blind spots: use mirrors to monitor, then supplement with a shoulder check to confirm it’s clear. The others aren’t accurate: mirrors alone don’t eliminate blind spots, you still need attention on straight roads, and blind spots do affect safety since something can be there unseen unless you look.