THE WORD “POTENTIALLY” IN PARAGRAPH 4 IS CLOSET IN MEANING TO _...

47. The word “potentially” in paragraph 4 is closet in meaning to _.A. possibly B. privately C. obviously D. certainlyAs the discussion about their safety continues, it appears that it's best to use mobile phonesless often. Use your regular phone if you want to talk for a long time. Use your mobile phoneonly when you really need it. Mobile phones can be very useful and convenient, especially inemergencies. In the future, mobile phones may have a warning label that says they are badfor your health. So for now, it's wise not to use your mobile phone too often.