One Distinct Difference Between the Two Otherwise Similar Planets, Uranus

Multiple Choice

One distinct difference between the two otherwise similar planets, Uranus and Neptune, is

A) the almost featureless visible image of Uranus, compared to distinctly seen storms and clouds on Neptune.
B) the absence of an internal magnetic field and surrounding magnetosphere at Neptune.
C) belts and zones on Uranus, visible through haze, compared to the totally cloud-enshrouded Neptune.
D) the absence of moons around Neptune.