In the context of responding to competitors' moves, which of the following statements accurately reflects the strategic considerations firms must account for according to the provided content?

Firms should always respond to competitors' disruptive innovations by immediately introducing a direct competing product to protect their market share.

The creation of a fighting brand is a strategic move used to lower prices across all of a firm's products to remain competitive against low$-$cost rivals.

Speed of response to a competitor's move is critical, as delays can allow the competitor to solidify their market position, making it harder to regain lost ground.

Mutual forbearance is a competitive strategy that encourages firms to aggressively expand into new markets without regard for potential retaliation by competitors in multiple markets.