14. unlike t lymphocytes, b lymphocytes unlike t lymphocytes, b lymphocytes
a. are white blood cells.
b. recognize infected body cells.
c. are made in the red bone marrow.
d. discover antigens in body fluids

Unlike T lymphocytes, B lymphocytes D.) DISCOVER ANTIGENS IN BODY FLUIDS.

B lymphocytes cannot directly attack infected cells. Instead, they produce antibodies that discovers and hijacks the antigens in body fluids like blood. 

Primary effectit is the most accurate.

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b