Which of the following is most critical for the advancement of multimedia as an industry? A innovation in software and hardware development
B advances in 3D computer coding development
C making computer software companies open for public investment
D better training for artists and designers

Innovation in software and hardware development

Explanation:

edg2021

"Innovation in technology is critical for the advancement of multimedia as an industry. Multimedia artists must continue to create new software and develop new hardware for their work."

This is a quote directly from the AV Tech course

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.