How do change in temperature affect rocks?
Water can cause rocks to become softer.
Water can cause rocks to change its mineral content.
Water can change rocks into larger pieces.
Water expands inside of waters when it is cold, breaking into smaller pieces.

D. Water expands inside of rocks when it is cold, breaking into smaller pieces.

Explanation:

Water, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock. If temperatures drop low enough, the water will freeze. When water freezes, it expands. The ice then works as a wedge. It slowly widens the cracks and splits the rock. When ice melts, liquid water performs the act of erosion by carrying away the tiny rock fragments lost in the split. This specific process (the freeze-thaw cycle) is called frost weathering or cryofracturing.

I hope that helped :)))