Comet Shoemaker-Levy 9 Split into Many Pieces Before Crashing into Jupiter

Multiple Choice

Comet Shoemaker-Levy 9 split into many pieces before crashing into Jupiter because

A) the comet collided with a moon of Jupiter.
B) the comet came within the Roche limit of Jupiter.
C) the comet melted as it absorbed sunlight.
D) the comet crossed an Lagrangian equilibrium point.