Deviation or departure from common rule or standard

A. Heterogeneity

B. Anomaly

C. Unanimity

D. Anonymity

Answer: Option B

Solution(By Examveda Team)

One word substitute is Anomaly.

Heterogeneity: the quality or state of being diverse in character or content.
Anomaly: something that deviates from what is standard, normal, or expected.
Unanimity: agreement by all people involved; consensus.
Anonymity: the condition of being anonymous.