You’re going to make a presentation about people’s increasing reliance on mobile phone. Which of the following is NOT appropriate to be used to grab audience’s attention in the opening of a presentation?

A、Youopenwithaquotation:"Iftelevisionisababysitter,theInternetisadrunklibrarianwhowon'tshutup".;
B、Youaskaudiencetoimaginewhatiftheylivewithoutmobilephonefortwodays.;
C、Youdisplayapictureinwhichallthepeopleareplayingwithmobilephonesonasubwaycar.;
D、Youopenwithaquestion:“CouldyoutellmehowoftenyouupdateyourWe-chatMoments?”