The Aldehyde and Ketone Moieties of the Carbohydrates with 5

The aldehyde and ketone moieties of the carbohydrates with 5 and 6 carbons will spontaneously react with alcohol groups present in neighboring carbons to produce ring structures. The rings can open and close allowing for different configurations of the atoms in the ring. Which of the following represents the carbon about which this rotation occurs?

A) anomeric
B) chiral16 part i Biological Building Blocks of Cells and Tissues
C) glycosidic
D) hydroxy
E) terminal