Choose the word which is different from the rest.

The answer is C. Sober.

The other three words (fear, anger, and love) are all emotions. Sober is not an emotion. It is a state of being not affected by alcohol or drugs.

Fear is an unpleasant emotion caused by the belief that someone or something is dangerous. Anger is an intense feeling of displeasure or hostility. Love is an intense feeling of deep affection.

Sober is not an emotion because it does not involve a feeling of pleasure or displeasure. It is simply a state of being not affected by alcohol or drugs.