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In each of the following questions, a statement of Assertion (A) is given followed by corresponding statement of Reason (R).
Of the statements, mark the correct answer as
(a) If both A and R are true and R is the correct explanation of A
(b) If both A and R are true, but R is not the correct explanation of A
(c) If A is true, but R is false
(d) If A is false, but R is true
Assertion (A) Metastasis is the phenomenon in which tumour cells detach and migrate to other parts of the body where they give rise to secondary tumours.
Reason (R) Abnormal antigens on the surface of cell and unusual number of chromosomes cause metastasis.

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