(A) : PCR is a method for amplifying a specific piece of DNA.
(R) : It is a powerful technique to identify many genetic disorders.

Options

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 both (A) and (R) are false.

Answer

B