Let \( f: \mathbb{R} \rightarrow \mathbb{R} \) be a continuous func...

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Let \( f: \mathbb{R} \rightarrow \mathbb{R} \) be a continuous function \( \forall \mathrm{x} \in \mathbb{R} \) and \( f(\mathrm{x})=5 \forall \mathrm{x} \in \) irrational. Then the value of \( f(3) \) is -
\( \mathrm{P} \)
(A) 1
(B) 2
(C) 5
(D) cannot determine
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