Question

if there are signal lights on the entrance ramp, you (1 point) 〇 can treat the red light as an advisory traffic control. 〇 do not have to stop for the red light. 〇 must stop if any light is on. 〇 must wait for a green light.

Explanation:

Entrance ramp signal lights follow standard traffic signal rules. Red means stop, green means go. So when there are signal lights on an entrance ramp, drivers must wait for a green light to proceed. The other options are incorrect: red lights on ramps are not advisory (so A is wrong), drivers must stop for red (so B is wrong), and "any light" is incorrect as different lights (like green or red) have different meanings (so C is wrong).

Answer:

D. must wait for a green light.