Answer: 55% of blood is made up of plasma
I hope that this helps you !
If a society does not have the economy to provide basic services, such as electricity, food, medicine, water, jobs, housing, clothing, etc. than more people are not going to get the things they need. If they can not get the things that they need through the conventional ways, then many will turn to crime, especially if they are desperate.
I think B because it's polite and straightforward.
