If We Could See Jupiter's Magnetosphere Visually,how Big Would It

Multiple Choice

If we could see Jupiter's magnetosphere visually,how big would it appear?

A) Jupiter's magnetosphere would be too small to be visible without a telescope.
B) Jupiter's magnetosphere would be easily visible, several times larger than the full Moon.
C) Jupiter's magnetosphere would cover essentially our entire sky whenever Jupiter was above the horizon.
D) Jupiter's magnetosphere would be just big enough to see, almost at the limit of unaided-eye visibility.