The correct option is C Sucrose
Sucrose is found to be the most stored form in the plant carbohydrates. Immediately after photosynthesis, the glucose is converted in the form of sucrose. Because sucrose is the most flexible form which can be converted into any of the above mentioned other forms of carbohydrates. Sucrose is the most stable form for distal transport. The sucrose (disaccharide) made from a monosaccharide (glucose) is finally stored in the form of a polysaccharide (starch).