Answer:
c. a small number of firms are acting strategically.
Explanation:
The Firms in oligopoly can influence market outcome and thus they act strategically to achieve the expected outcome.
income tax majorly they depend majorly on income tax
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The rest of the question?
Answer:
D.
discouraging the use of products like alcohol and tobacco
Explanation:
Excise taxes can be regarded as taxes that are been paid after purchasing a particular goods such as gasoline, it is also extended on activities like usage of high ways.. It should be noted that besides raising revenue, discouraging the use of products like alcohol and tobacco is another important use of excise taxes.