Why is it not recommended to use high beam headlights when following a Commercial Motor Vehicle (CMV) at night?

• High beams are not effective in illuminating the road
• High beams may blind the CMV driver when they reflect off the CMV's large side mirrors
  Explanation:

  "You must avoid using high beams when trailing a commercial motor vehicle at night, as the reflection from its large side mirrors can blind the driver."
• High beams improve visibility for the CMV driver
• None of the above