The strong interdependence of oligopolistic firms is shown by

A) their willingness to change prices frequently.
B) their reluctance to advertise.
C) their inability to form a price conspiracy.
D) the vulnerability of their sales to the actions of their rivals.

Interdependence

A relationship between entities where they rely on each other for resources, information, or trade.

Oligopolistic Firms

Companies operating in an oligopoly market structure, characterized by a limited number of firms controlling a large portion of the market share.

Price Conspiracy

An illegal agreement between parties to fix prices, limit production, or divide markets, therefore, undermining the competitive market system.