Final answer:
The correct numbered Fischer projection of D-glucose is option c) 3,2,1,4,5.
Step-by-step explanation:
The correct numbered Fischer projection of D-glucose is option c) 3,2,1,4,5. In a Fischer projection, the topmost carbon is usually on the right and the OH groups are depicted as horizontal lines. In D-glucose, the OH groups on all carbons except the third carbon are on the right side.