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).

Q: Paragraph: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.
 Question: When waves in the ocean go slow there will be 
 Choices: A)less 
B)more

A: less
****
Q: Paragraph: Objects with greater mass have a stronger force of gravity.
 Question: Greta lost weight after eating food. Her force of gravity 
 Choices: A)increased 
B)decreased

A: decreased
****
Q: Paragraph: For a given medium such as air, sound has a slower speed at lower temperatures.
 Question: Ivan yells across a canyon in the morning when it is cold and again later in the afternoon when it is hot. During which time did his voice travel the slowest? 
 Choices: A)morning 
B)afternoon

A:
morning
****