One of the products was found to be a sugar. Compound X was probably?

Use this following information to answer this question. Compound X was boiled with concentrated hydrochloric acid for a long time. One of the products was found to be a sugar. Compound X was probably

A. rubber
B. polyethene
C. nylon
D. cellulose
E. ethanol

Correct Answer:

Option D – cellulose