Question

when passing another vehicle, when is it acceptable to drive over the speed limit?
when theres a broken white line next to you
if an emergency vehicle is behind you
under no circumstances
when theres a broken yellow line next to you

Explanation:

Speed limits are set for safety and must be adhered to. Passing another vehicle does not justify exceeding the speed limit under any normal - driving circumstances. Emergency vehicles behind you may require you to move over, but not to speed up. Road markings like broken white or yellow lines indicate lane - changing rules, not permission to speed.

Answer:

Under no circumstances