(Q).
Here's a short story: Suppose Flash who is the fastest superhero on the planet races Ironman in a 1 min all out sprint. Who would win this race? (A) Ironman (B) Flash.  What is the most sensical answer between "Flash" and  "Ironman"?
(A).
Ironman


(Q).
Here's a short story: David tried riding his bicycle on pavement and then on sand and found that it was much harder to get it to move on sand. He concluded that the material that has more friction is (A) pavement (B) sand.  What is the most sensical answer between "sand" and  "pavement"?
(A).
pavement


(Q).
Here's a short story: The stallion ran quickly through the grassland but ran slowly through the thick forest because it had way (A) more resistance (B) less resistance.  What is the most sensical answer between "thick forest" and  "grassland"?
(A).
thick forest