Question

While driving, if you need to use your cell phone, _________. using a hands-free phone will keep your mind on driving you should pull over to use the phone it is risk-free to have the conversation in a low-traffic environment it is completely safe as long as you keep your eyes on the road?

Answer 1

The answer to fill in the blank in the question above is "make sure that your phone is a hands-free system" based on the paragraph' content. A hands-free system means that a person does not have to use his/her hand for operating the system. A person must use this system if he/she is in the driving situation to avoid a distraction to his/her focus.