B.
It is specific because it’s the only thing that has to do with numbers
Answer:
the branch of medical technology that seeks to create replacement tissues or organs. Engineers often start with existing tissue, such as bone or skin. Now, new tissue can also often be generated from stem cells, which are special growth and repair cells that can be found in embryos, blood, fat, and marrow.
Explanation:
Safe and secure so we has kids can play sports that we love