What is the C-4 Epimer of Glucose

Question

What is the C-4 epimer of glucose?
A)allose
B)mannose
C)gulose
D)galactose
E)fructose

Accepted Answer

The C-4 epimer of glucose is galactose. Epimers are carbohydrates that differ only in the configuration around one specific carbon atom. In this case, galactose differs from glucose only in the configuration around the fourth carbon atom.