Find out that word, the spelling of which is wrong.

The correct answer is D. Deliquescence.

The other three words are spelled correctly.

• Demarkation is the act of marking a boundary or limit.
• Dandruff is a common scalp condition that causes white flakes to fall from the head.
• Detonation is the sudden and explosive release of energy.

Deliquescence is the process by which a substance absorbs water from the air and dissolves itself.