(A) : Trachoma is reported to the leading cause of blindness.
(R) : It is an infection of the conjunctive of the eye.

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

A