The answer would be: C. Pain in one leg
The pills could cause several side effects like gaining weight or breast tenderness but it was not dangerous. The side effects that need to be reported is a pain in one leg which indicate a deep vein thrombosis.
Lump in the breast also dangerous as it indicates a breast tumor/cancer.
Saturn is a gassy planet which makes it much easier that its shape is changing in accordance to its spinning speed. Since Saturn is spinning relatively fast, the rounded shape that it is expected to have, actually becomes an oblate spheroid, which pretty much means that its poles are pressing towards the center, while the equatorial part expands, thus giving it an ecliptic shape.