Select the option that can be used as a one-word substitute for the given group of words.

A strong interest in something or someone

Fixation

The best option that can be used as a one-word substitute for the given group of words is fixation.

• Fixation means an obsessive interest in or feeling about someone or something.
• Empathy means the ability to understand and share the feelings of another.
• Apathy means lack of interest, enthusiasm, or concern.
• Attachment means affection, fondness, or sympathy for someone or something.

The word fixation is the best fit because it specifically refers to a strong interest in something or someone. It can be used to describe a positive or negative interest, but it is often used to describe an interest that is obsessive or unhealthy.