In a proper webpage which tag holds all of a webpages visible html?

Complete the sentence about a presentation delivery method

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables