When driving in fog, you should NOT:

Use high beam headlights.. Section 2.12: Do not use high beams. The light will reflect off the fog and glare back into your eyes.

When driving in fog, you should NOT:

ANSWER BREAKDOWN
  • A. Incorrect. "Use low beam headlights." is a valid/expected item and does not fit the "NOT" criterion. Do not use high beams. The light will reflect off the fog and glare back into your eyes.
  • B. Incorrect. "Use 4-way flashers." is a valid/expected item and does not fit the "NOT" criterion. Do not use high beams. The light will reflect off the fog and glare back into your eyes.
  • C. Correct. Do not use high beams. The light will reflect off the fog and glare back into your eyes.
  • D. Incorrect. "Slow down." is a valid/expected item and does not fit the "NOT" criterion. Do not use high beams. The light will reflect off the fog and glare back into your eyes.