Answer: C, upper thigh
Explanation: if you put it in the stomach, you have a high chance of puncturing an organ, the shoulder and arm would probably take a while to deliver the medicine to where it needs to go, the thigh is a sure place where you won't accidentally puncture an organ and make more problems, and it's a good open area of skin.
Now is a big deal because most of the people don’t listen. They go out and don’t wash there hands and that contains a lot of bacteria which causes virus.
Not smoking, no alcohal, daily exercise, eating healthy.
I hope this can help.