Drivers who text spent about 10% of their driving time outside their own driving lane.

True

Explanation:

Various studies have reported that Drivers who text spent about 10% of their driving time outside their own driving lane. This act is not unsafe for their own life but also for the traveling in next line to them.

According to a study of Salt Lake City to the Midwest, failure to stay in proper lanes is a common cause of fatal accidents. It has also been estimated that texting  or calling while driving is the major cause of death of on average 11 teenagers every day.

Therefore, there is alot of focus by regulatory authorities nowadays to keep proper eye on teens and drivers using mobile phones while driving and discourage this act.

Hope it help!

i think the answer would be a. after sentence 14! i hope i at least a little