Question

read the paragraph, then choose the word that best completes the sentence. gas-electric hybrid vehicles are better for the environment than regular cars. that is because they have electric motors. they can switch from running on gas to running on electricity. however, electric motors are quiet. hybrids make almost no noise at slower speeds. that is when they run solely on electric power. because of this lack of noise, people who are blind say that the vehicles pose a hazard. they rely on their ears to determine whether it is safe to cross the street or walk through a parking lot. some people think that the cars should be ______. a cheaper b larger c louder d cleaner

Explanation:

The paragraph states that hybrid vehicles are quiet (almost no noise at slower speeds), which is a hazard for blind people who rely on hearing to navigate. So, to solve this hazard, the cars should be made louder so that blind people can hear them. Option A (cheaper) is about cost, B (larger) about size, D (cleaner) about environmental friendliness, none of which relate to the noise issue. Only C (louder) addresses the problem of lack of noise.

Answer:

C. louder