You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Example Input: Paragraph: The bigger the waves are and the more sediment they carry, the more erosion they cause.
 Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is twice as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Choices: A)more 
B)less
Example Output: more

Example Input: Paragraph: The more tightly packed the particles inside the material are, the more dense we say they are.
 Question: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The ball is _____ dense than the rock. 
 Choices: A)less 
B)more
Example Output: less

Example Input: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has more friction? 
 Choices: A)sandpaper 
B)notebook paper
Example Output:
sandpaper