Here's a short story: A pizza sliding across a metal counter has low resistance, but one sliding across a stone counter has high resistance. This means the pizza can slide a lot quicker over the (A) stone counter (B) metal counter.  What is the most sensical answer between "metal counter" and  "stone counter"?
stone counter

Here's a short story: A worker pushes a wheeled dolly over a patch of grass into a building and then pushes the dolly on the concrete floor inside the building. She notices the dolly moves faster over the concrete floor than it does over the grass. The reason for this is that the surface with more resistance is (A) the grass (B) the concrete floor..  What is the most sensical answer between "concrete floor" and  "grass"?
concrete floor

Here's a short story: Milo's dog has smoother hair than his cat. He was brushing both animals and found out that his brush moved faster through his (A) dog's hair or (B) cat's hair.  What is the most sensical answer between "dog's hair" and  "cat's hair"?
dog's hair

Here's a short story: Carl decides to try to roller blade over the shag carpet in the living room and then over the wood floor in the hallway. He will roll more quickly over the wood floor because it has (A) more friction (B) less friction..  What is the most sensical answer between "wood floor" and  "shag carpet"?
shag carpet