How Did the Great Dark Spot, Observed on Neptune, Compare

Multiple Choice

How did the Great Dark Spot, observed on Neptune, compare to Jupiter's Great Red Spot?

A) The Great Dark Spot was much smaller in relation to Neptune's size.
B) The Great Dark Spot wandered over Neptune's surface, whereas the Great Red Spot remains relatively fixed.
C) The Great Dark Spot disappeared after a few years.
D) The Great Dark Spot was matched by a similar spot on the opposite side of the planet, whereas the Great Red Spot is solitary.