The motorcycle rider must check his/her mirrors every

  1. 4-5 seconds.
  2. 9-10 seconds.
  3. 5-7 seconds. ✓
  4. 1-2 seconds.

Answer: C. 5-7 seconds.

Check your mirrors every five to seven seconds.

Why this is the answer

The motorcycle handbook's mirror section tells riders to check mirrors every five to seven seconds. It says this keeps you aware of traffic coming up behind, so a passing vehicle does not catch you by surprise, and so you know what is behind when you need to stop or swerve. The freeway passage gives a wider five-to-10-second range, but the specific mirror-check guidance is five to seven seconds, which matches the bank answer.

Why the other answers are wrong

Remember it

Use the five-to-seven count as your mirror rhythm while riding.

Official handbook: Official MTO Motorcycle Handbook, Visibility – Check your mirrors

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.