A.Use the same force or strategy of one's opponent to counter them✓ Correct
B.Use incendiary tactics to destroy by fire
C.Add fuel to further escalate a fiery situation
D.Scorch one's opponent with a barrage of firing
Explanation
The idiom 'fight fire with fire' means to respond to an attack or aggressive action by using the same methods or tactics as the attacker. It implies matching one's opponent's strategy or intensity. It does not literally refer to using fire or incendiary tactics. Hence, option (a)—using the same force or strategy of one's opponent to counter them—is the correct meaning.
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