Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments

The revenue source is B. advertising and subscriptions.

One of the most significant parts of media is the way that the media business is only that: an industry. Most media makers and outlets are business in nature, with the primary goal of profiting. There are a few strategies or “income models” that media organizations use to profit.

The four most regular income models are:

Thus, from the options given in the question, option B which states that Advertisement and subscription is considered as best option for the given question.

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metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.