You see an ad in the movie theatre for a new computer game. There is an American eagle proudly flying in the background of the advertisement. What propaganda technique is the commercial using

Transfer technique

Explanation:

In business, the transfer technique happens when the company try projecting a positive emotion and associate it with the company's product.

This can be seen with the example above.

American eagle proudly flying in the background was used by the company to convey a patriotic feeling (the positive emotion)  within the audiences.  This will make the audiences think that by playing the game, the audiences could re-create that same positive feeling again.

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