B. 4 / 4
ExplanationStep 1: Compare with y² = 4ax. Step 2: 4a = 16 so a = 4. Step 3: In this form the focus is (a 0).
Step 1: y² = 4ax से compare करें। Step 2: 4a = 16 इसलिए a = 4। Step 3: इस form में focus (a 0) होता है।
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