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.
I’d choose number (2)
step by step explanation:
Thermoregulation- Helps the plant to maintain its temperature.
Water regulation-Laws requiring water usage of how many pollutants in water.
Hormone regulation-Plants do not produce hormones.
Waste regulation-Disposal of waste.
Hope this helped.