Mark the correction alternative in the following: A student was asked to prove a statement \( P(...

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Mark the correction alternative in the following: A student was asked to prove a statement \( P(n) \) by induction. He proved \( P(k+1) \) is true whenever \( P(k) \) is true for all \( k5 \in N \) and also \( P(5) \) is true. On the basis of this he could conclude that \( P(n) \) is true.
(a) for all \( n \in N \)
(b) for all \( n5 \)
(c) for all \( n \geq 5 \)
(d) for all \( n5 \)
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