Question

In the human body blood as a tissue. The job of the blood is to bring nutrients in oxygen to the different parts of the body and remove any waste or harmful toxins. Which of the statements below would be a reason why blood is considered a tissue?

A. blood is made up of one cell
B. blood tissue moves throughout the whole body
C. blood tissue is made up of organs that work to complete unrelated jobs
D. blood tissue is made up of different cells that work together to complete the same job
(PLEASE HELP)

Answer 1

Answer: A because blood is mainly made of RBC and also all the other answers don't seem right.

Answer 2

Blood is a tissue because it has similar sized cells that serve particular functions, as it says in google. Eventually, they all make the blood a fluid. So.. it has to be D.