Which of the following is one way that a few firms can gain some control over their market?
a.
secretly cooperate with one another
b.
bribe government officials to have prices set by law
c.
threaten to stop producing
d.
use advertising to increase demand

D.  Use advertising to increase demand

Explanation:

You can generate demand with the use of advertising in order to gain market positioning through a branch of marketing called content marketing.

Content marketing consists of a marketing technique for the creation and distribution of relevant and valuable content to attract the attention of a particular audience, with the aim of encouraging them to be future customers.

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