By the 1940s, the general interest, mass circulation magazines (with and without an emphasis on pictures) were well established. These include Life, Look, Collier’s<span>, and the </span>Saturday Evening Post<span> and others. National magazines, with circulations in the millions, were an important part of national advertising strategies of virtually all major brand name products. In 1946 magazines held 12.6 percent of the total advertising market share (van Zuilen, 1977).</span>
"2. Are you writing naturally and academically?" would be the best option. The rest of the answers seem more like revisions to grammatical errors rather than the voice of the essay.