Definition 1 would best fit.
You have key words such as "whole" and "electronic devices" (note devices is plural). So it's talking about a whole bunch of electronic devices. So definition 1
"A large variety or assortment of things" would best fit.
Answer:
Companies bought time from the radio network to run ads for their goods and services. NBC™ was not in business to make a profit. NBC™ sold off radio stations to several new companies, one of which formed ABC™
Jamie Moore being unkind should be left out. That’s direct characterization, which isn’t necessary in a summary of a plot. It’s descriptive rather than a detail that moves the plot along.
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Explanation: