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 hotter a resistor becomes the more resistance it has.
 Question: Paul measured a resistor's temperature at 20C. Another resistor he measured at 30C. If both resistors are the same type, which offers less resistance? 
 Choices: A)20C 
B)30C
20C

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: In general, fossils in older rocks are less similar to modern organisms.
 Question: Jimmy found a fossil on the beach. He compared it to a fossil in the museum that was much older. Which fossil resembles modern organisms the least? 
 Choices: A)beach fossil 
B)museum fossil

museum fossil