Final answer:
Fatigue does not cause a car to accelerate while driving or a person to stand up from a seated position; these are not effects of fatigue on one's driving ability.
Step-by-step explanation:
The question pertains to the effects of fatigue on driving ability. Among the given options, options a. a person standing up from a seated position, b. a car accelerating while driving, c. both of the above, and d. none of the above, none is a direct effect of fatigue on driving ability. Fatigue typically leads to a degradation in concentration, slower reaction times, impaired judgment, and a higher risk of falling asleep at the wheel. If we refer to the context provided about sleep deprivation and driving performance, it suggests that fatigue would certainly diminish a person's driving skills but would not cause a car to accelerate on its own, nor would it cause a person to stand from a seated position by itself.