At least during their lifetime, most drivers will be involved in a serious crash where people are injured or killed.
a. three times
b. twice
c. once

a). Three times

Explanation:

According to the statistic given by the Insurance company, at an average a driver meet with an accident at every 17.9 years. Some of which is may be fatal and some may not. So if one gets his license to drive at an age of 16 years and retires at an age of 60, so we can consider around 54 years of driving. Therefore if we divide 54 by 17, we get 3.17

Thus we can say that at least three times during their lifetime, most drivers will be involved in a serious crash.

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.

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