Beginning in the 1950s, popular music was revolutionized by the electrification of musical instruments, which has enabled musicians to play with increased volume. ███████ ██████████ █████████ ███ ████ ████ █████████ ███████ ███ ███████ ██████ ██ █████████ ███ ████ ███ ██████████ █████████████ ███████████████ ███ █████████ ██████ ████ █████████ ███ ███████ ██████ ██ █████████ ███ ████ ███████ █████ ███████████████
The electrification of musical instruments has enabled musicians to play at increased volume. Because individual musicians can play with increased volume, the average number of musicians per band has decreased. However, the number of musicians who play popular music professionally has increased because of electrification.
Because of electrification of musical instruments, the total number of professional bands has increased.
Which one of the following ██ ████ ████████ █████████ ██ ███ ██████████ ██████ ██ █████ ██████████ ███ █████
The number of ███████ █████████ ███ ████ ███████ █████ ███ ██████████
Most professional musicians ███ ████ ██ ████ ████ ████████ ███ ███████████ ████████████
The number of ████████████ █████████ ██ ████ █████ ███ ██████████
The total number ██ ████████████ █████ ███ █████████ ██ █ ██████ ██ ████████████████
Many professional musicians ████ ██ ████ ████ ███ █████