<span>News and information outlets such as Onlinecolleges.net report that 47 percent of students have used a mobile app for learning. Edudemic.com published an article noting that even basic apps on smartphones, like calculators and calendars, aid studying.</span>
G, D, A, E, F#. You can easily use the circle of 5ths to find this!!!!
Shading.
Hope this helps:)
D is the answer, because all of the above are true. All of the answers make since.
