Given △ABC≅△MBC.
Then the corresponding parts will also be equal.
That is by CPCT rule, corresponding parts of congruent triangles are equal.
Then, AB=MB, BC=BC, AC=MC, ∠A=∠M, ∠B=∠B and ∠C=∠C.
Thus, AB=MB ⟹ BA=BM.
Hence, option A is correct.
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