Which vitamin is primarily responsible for blood clotting? select one:
a. vitamin a
b. vitamin c
c. vitamin e
d. vitamin k

The vitamin primarily responsible for blood clotting is D. Vitamin K. Vitamin K is a lipid-soluble vitamin, so it is stored in the body's fat. Its name comes from the word Koagulationsvitamin. It can be seen that coagulation, meaning clotting, is part of its name because of its function. It works by synthesizing proteins that are needed for coagulation.

Answer d would be the best answer, for he wants to have part in biotechnology. an ekg technician is quite similar.