Which Statement About the Difference Between a Piedmont Glacier and a Continental

Which statement about the difference between a piedmont glacier and a continental ice sheet is correct?

A) The toe of a piedmont glacier floats on sea or lake water, whereas that of a continental ice sheet does not.
B) The zone of accumulation of a piedmont glacier is generally at high elevation, whereas that of a continental ice sheet is generally not at high elevation.
C) A piedmont glacier is more likely to cover a vast area, whereas a continental ice sheet is likely to only cover a medium-sized area.
D) Piedmont glaciers are currently found only in the northern hemisphere, whereas continental ice sheets are currently found in both hemispheres.