Answer:
C.) Help repair tissue and close wounds both internally and externally
Step-by-step explanation:
A.) is incorrect because oxygen is transported to tissues via haemoglobin located on red blood cells.
B.) is incorrect because deterimental microbes within the body are surrounded and consumed by phagocytes, a type of white blood cell.
C.) is correct because platelets help to close wounds by clotting the blood to prevent it from exiting the body.
D.) is incorrect because antibodies, proteins produced to combat harmful viruses, bacteria, etc., are created by B lympocytes, a type of white blood cell.