The product in the following reaction is

B

The correct answer is Option (2) → B

The given substrate is p-nitrochlorobenzene.
On treatment with NaOH at 443 K followed by acidification (H⁺), it undergoes nucleophilic aromatic substitution (SNAr) because the –NO₂ group (strong –I, –R) at the para position activates the ring.

• Cl is replaced by OH
• Product formed is p-nitrophenol

✅ Correct product: B (p-Nitrophenol)