Which of the Following Things Is an "Extended Object"? for Each

Short Answer

Which of the following things is an "extended object"? For each item, answer "A" if the item is an acceptable extended object, " $\mathrm{B}$ " if the definition of an extended object applies badly to the item, and " $\mathrm{D}$ " if it is debatable.
-Sugar molecules dissolved in a cup of water