Question

Which key nutrient has been known to reduce the risk for heart disease for all adults over the age of 51?

A. calcium


B. vitamin D


C. vitamin C


D. vitamin B12

Answer 1

I'm pretty sure it's vitamin B12. Because of the key nutrient which has been known to reduce the risk for heart disease for all adults over the age of 51.

Step-by-step explanation:

Answer 2

D. Vitamin B12 is the key nutrient which has been known to reduce the risk for heart disease for all adults over the age of 51.