I'm pretty sure the answer is D
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. Whenever a vehicle ahead of you stops to let a pedestrian pass in front of you, you should stay in line and until the vehicle ahead proceeds.
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
In a turbite bed sediments is deposited chronologically.