Fill in the blank with the correct option.
The teacher believed that the student’s sudden lack of interest in class was an ..........., as he had always been enthusiastic and attentive.
To solve the problem, we need to choose the word that best fits the context of an unexpected change in the student's behavior.
- Incentive: Something that motivates or encourages a person.
- Anomaly: Something that deviates from what is standard, normal, or expected.
- Proverb: A short, common saying that expresses a truth or advice.
- Alleviation: The act of making something less severe or serious.
The student was always enthusiastic and attentive, so the sudden lack of interest is unusual or unexpected. This suggests the correct word should mean a deviation from the norm.
The correct option is B: anomaly.