Question

note: please do not click refresh, back or forward button of browser while taking test. question: a wet roadway is most slippery options: during the first few minutes of rain after it has rained a while

Explanation:

A wet roadway is most slippery during the first few minutes of rain because initially, the rain mixes with oil, grease, and dirt on the road surface, creating a more slippery layer. After it has rained a while, the water washes away much of these substances, reducing slipperiness. So the correct option should be "during the first few minutes of rain".

Answer:

A. during the first few minutes of rain