( A ) o-Nitrophenol is more volatile in steam than those of m- and p-isomers
( B ) Melting point of o-Nitrophenol is lower than those of m- and p-isomers.
( C ) o-Nitrophenol shows Intermolecular H-bonding
( D ) o-Nitrophenol shows Intramolecular H-bonding