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: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
 Question: Kevin has a hybrid car and Steve has a large truck. Which car likely pollutes more? 
 Choices: A)hybrid 
B)truck

A: truck
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Q: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: A piece of sandpaper was rubbed across a glass table, then the sandpaper was rubbed across some gravel. The friction will be less between 
 Choices: A)the sandpaper and the glass table or 
B)the sandpaper and the gravel.

A: the sandpaper and the glass table or
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Q: Paragraph: If we increase the resistance in a series circuit, by adding more resistors, then the total current decreases.
 Question: If Todd removes a resistor to the circuit, then the current will be 
 Choices: A)stronger 
B)weaker.

A:
stronger
****