The correct answer is A. Involutary. The correct spelling is involuntary.
Involuntary means not done by choice or under one's control. It is an adjective.
Anxiety is a feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome. It is a noun.
Recuperate means to recover from an illness or injury. It is a verb.
Languish means to become weak or feeble through illness, lack of nourishment, or other causes. It is a verb.
