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).

Paragraph: The closer objects are, the stronger the gravitational pull between them.
 Question: Mary is looking through her new telescope. She sees some objects in space that are exerting gravitational pulls on each other. If the first two objects are 50,000 miles apart, and the second set of objects are 100,000 miles apart from each other, then the gravitational pull of the first set of objects is 
 Choices: A)greater 
B)less.
greater

Paragraph: For a given medium such as air, sound has a slower speed at lower temperatures.
 Question: If Mary is blowing an air horn underwater and she raises the temperature of the water, what will happen to the speed of the sound waves generated by the air horn? 
 Choices: A)increase 
B)decrease
increase

Paragraph: Larger telescopes can collect more light.
 Question: Alan saw Venus through his old telescope. He then looked through his bigger, better telescope. Venus likely appears darker through the 
 Choices: A)smaller telescope 
B)bigger telescope

smaller telescope