Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R).\n\n **Assertion (A):** Vitamin A deficiency leads to night blindness (nyctalopia), but it does not directly cause refractive errors like myopia or hypermetropia.\n **Reason (R):** Vitamin A is a biochemical precursor for the synthesis of retinal, the light-absorbing component of rhodopsin in rod cells, whereas refractive errors are structural anomalies related to eyeball length or lens curvature.\n\n Select the correct answer using the codes given below:

Options:

• A: Both A and R are true and R is the correct explanation of A.
• B: Both A and R are true but R is NOT the correct explanation of A.
• C: A is true but R is false.
• D: A is false but R is true.

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