Text messaging while driving is dangerous, and making it against the law in many states would be a good idea.

which is the best revision of the underlined portion of the sentence?

a. which is why many states support banning the practice.

b. and people think it should be against the law.

c. and might become against the law in many states.

d. and many states might make it against the law.

A. which is why many states support banning the practice.

Explanation:

The phone should be far from the driver, that's a fact. Compared to the illegal attitude of talking on the phone while driving, sending a message is potentially more dangerous. Driving means being aware of all stimuli coming from traffic. As the phone turns its attention to the auditory stimuli, the message deviates from the visual as well as from the tactile, as you begin to worry about typing. Elaborating a text and typing it in a device of small dimensions, while still locating the recipient's number, are activities that require cognitive and neuromotor commitment. Such capabilities make it irreplaceable to the act of driving. That is why many states support the ban on this practice.

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