I’m pretty sure it’s the second period. I think that’s when most of the development happens
The answer is the last sentence.
Hello! OK, so my cousin had cancer and the children had to wear masks over their mouth to go into his house or hospital room. This is because children don't have as strong of an immune system as adults. Also, children tend to have more germs than adults. This could be due to school, the playground, or even playing in dirtier places like sand or the dirt.
C. he may eventually spend a large amount of money on health care costs.
