Paying bills and having to take care of kids
B.
Explanation: common sense
Bloodborne disease!!!!!!!
I would say this way of defining family is by blood relationship ie sharing the same blood as the parents as opposed to say someone brought up by foster parents ie adopted and thus having a family by virtue of upbringing ie by who the child was brought up by.
D. They carry oxygenated blood to the lungs to be pumped to the heart then around the body. Pulmonary has to do with the lungs