Direction: For each set of four words, three belong to the same category or group, and one does not. Select the word that is different.
Show answer & explanation
Correct answer: A
Explanation
Plague – caused by bacteria (Yersinia pestis)
Mumps – caused by virus
Rabies – caused by virus
Herpes – caused by virus
Three diseases (Mumps, Rabies, Herpes) are viral diseases But Plague is a bacterial disease.
Hence, the correct answer is option (1).