<|system|>
Which is bumpier?
A: rock wall
B: rubber ball</s>.
<|user|>
Can you answer based on context?
<|assistant|>
Bumpy is a property. A bumpy material is covered in lumps and bumps. It is not flat or smooth.
Look at each picture, one at a time. Imagine touching the material shown in each picture.
Of the choices, the rock wall is bumpier. If you touch a rock wall, it will feel bumpy and lumpy.