A or B not sure though
(1 or 2)
Answer:
A space cushion is a certain amount of distance you keep between you and the car in front of you that allows you to easily maneuver in any condition. A typical space cushion in perfect conditions would be about 3 seconds between you and the car in front of you.
Explanation:
The endoplasmic reticulum, golgi apparatus, and the mitochondria.