After the ban on cigarette advertising, the total costs incurred by cigarette companies increased and the prices of cigarettes also increased.
The process of making people and the society at large aware about a product, which is available to be brought in the market, is known as advertising.
Cigarette advertising was banned in order to curb the negative impacts of smoking addiction of impressionable youth in the society. As a result, the production costs went higher as it impacted the prices of cigarettes.
Hence, option C holds true regarding advertising.
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