Answer: FOUR <span>asymmetric centers are present in the open chain form of the Aldohexose d-(-)-Gulose.
Explanation: Here the word
Asymmetric center means those carbon atoms which contains atoms or group of atoms different from each other. All the
four atoms or group of atoms attached to carbon atom are different and have different molecular masses. Such carbon atoms are also called as
Chiral carbons. The structure of </span>d-(-)-Gulose is drawn below, and all Four Asymmetric centers are pointed by "
* "
I'm thinking its answer choice D. But it might be a good idea to wait and see if someone agrees