A. If both Assertion \& Reason are True \& the Reason is a correct ...

A. If both Assertion \& Reason are True \& the Reason is a correct explanation of the Assertion.
\( P \)
B. If both Assertion \& Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion \& Reason are False.
Assertion :- The focal length of a normal eye-lens is about \( 2.5 \mathrm{~cm} \).

Reason :- The muscles of a normal eye are least strained when the eye is focused on an object at about \( 25 \mathrm{~cm} \) from the eye.
(1) \( \mathrm{A} \)
(2) B
(3) \( \mathrm{C} \)
(4) \( \mathrm{D} \)