The tendency of BF3, BCl3 and BBr3 to behave as Lewis acid decreases in the sequence

Question

The tendency of BF₃, BCl₃ and BBr₃ to behave as Lewis acid decreases in the sequence

BCl₃ > BF₃ > BBr₃

BBr₃ > BCl₃ > BF₃

BBr₃ > BF₃ > BCl₃

BF₃ > BCl₃ > BBr₃

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