You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Sentence: Rolling a red ball across an orange carpet makes the ball get hotter then rolling it across a blue carpet. Question: Which carpet is the most smooth?
blue carpet

Sentence: Violet was rolling an eggplant around the kitchen. She noticed that when she rolled it across the kitchen rug, the eggplant went slower than when she rolled it across the wooden cutting board. Question: She realized that this happened because which surface was smoother?
cutting board

Sentence: Mike rolled his tomato over a cutting board and over a counter. He noticed the temperature of the tomato rose more when he rolled it over the cutting board. Question: Which surface has more resistance?

cutting board