(Q).
Here's a short story: Harry noticed that he got a much less smooth ride when travelling with his bicycle over sand than when travelling over pavement. Riding his bicycle over _____ generates less heat (A) sand (B) pavement. What is the most sensical answer between "sand" and "pavement"?
(A).
pavement

(Q).
Here's a short story: A boulder rolling down a rugged hillside experiences more friction then one rolling down a clearcut hillside. This means the boulder can reach a higher top speed across the (A) rugged hillside (B) clearcut hillside. What is the most sensical answer between "rugged hillside" and "clearcut hillside"?
(A).
clearcut hillside

(Q).
Here's a short story: Bill sees a large black tire and a small white tire. The black tire is (A) close (B) far. What is the most sensical answer between "black tire" and "white tire"?
(A).
black tire