Your correct answer to this question is C
the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Answer:
Yes, vaccination should be mandatory because without it all of us would slowly died from not having a cure. According to research people, they said; "vaccination will helps you to stay healthy. It also are important to your overall health such as diet and exercise."
Explanation:
