Answer: 5(last one :regulation of circulatory system)
Answer: A
Explanation: Vestibular Sense has to due with our ability to maintain balance and body posture.
C is the answer you’re looking for
I believe the answer is A) cereal is low moisture. Because bacteria can grow very easily in areas with a lot of moisture.
D. Regular Exercise has been shown to reduce the physical effects of stress.
A wouldn't be correct because at home, you can find plenty of time to relax.
B would be wrong because it is opinion based and would be extremely difficult, if not impossible to experiment for.
And C would be wrong because mental discipline doesn't necessarily means you can take away stress.
Hope this helps!
~GeeksandNerds