From the sugars shown below, which one is a non-reducing sugar?

Name: From the sugars shown below, which one is a non-reducing sugar?
Brand: Quizplus
Rating: 4.8 (53 reviews)

Question

Quizplus · Accepted Answer

In order for a sugar to be reducing, it must have a free anomeric carbon that can be oxidized. Sugar C does not have a free anomeric carbon because it is already involved in a glycosidic bond, making it a non-reducing sugar. The other sugars (A, B, and D) all have a free anomeric carbon and are therefore reducing sugars.

From the Sugars Shown Below, Which One Is a Non-Reducing