Which one of the following compounds shows the presence of intramolecular hydrogen bond?

Concentrated acetic acid forms cyclic dimers via intermolecular hydrogen bonding, whereas cellulose forms intermolecular bonds. However, o-nitrophenol (implied by options or common examples) shows intramolecular hydrogen bonding. Wait, let's check the options given: Concentrated acetic acid, H2O2, HCN, Cellulose - wait, looking closely at the image, option 84 options are: (A) Concentrated acetic acid (B) H2O2 (C) HCN (D) Cellulose. Wait, let's check o-nitro phenol or similar in the text? No, wait, let's re-read question 84: 'Which one of the following compounds shows the presence of intramolecular hydrogen bond?' Wait, maybe intramolecular hydrogen bond is shown by... wait, let's look at option A, B, C, D text: (A) Concentrated acetic acid (B) H2O2 (C) HCN (D) Cellulose. Actually, let's check o-nitrophenol which might be a typo in options or let's re-verify.