Read the thesis statement about text messaging.

"Text messaging while driving is dangerous, and making it against the law in many states."

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

A. which is why many states are implementing laws to ban the practice.
B. and it is causing quite a bit of controversy between the states.
C. but it is not gaining enough media attention to stop the practice.
D. thus many people are opting to stop using their cell phones in cars.