Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing, or

Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing, or:

(A) The bus starts moving ahead.
(B) The driver turns on the hazard lights.
(C) The children are 300 feet away from the sidewalk.(D) The bus starts backing up.

Option A is the Correct answer. Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing, or: The bus starts moving ahead.