If you are driving a heavy vehicle, you should adjust your speed based on:

Road conditions, visibility, and traffic.. Section 2.6: You must drive at a speed that is reasonable for the road conditions, visibility,

If you are driving a heavy vehicle, you should adjust your speed based on:

ANSWER BREAKDOWN
  • A. Incorrect. "The posted speed limit only." is not correct. You must drive at a speed that is reasonable for the road conditions, visibility, and traffic, regardless of the posted limit.
  • B. Incorrect. "The speed of other traffic." is not correct. You must drive at a speed that is reasonable for the road conditions, visibility, and traffic, regardless of the posted limit.
  • C. Correct. You must drive at a speed that is reasonable for the road conditions, visibility, and traffic, regardless of the posted limit.
  • D. Incorrect. "Your schedule." is not correct. You must drive at a speed that is reasonable for the road conditions, visibility, and traffic, regardless of the posted limit.