Match List I with List II.
| List I | Antimicrobials Names | List II | Names |
| (A) | Narrow spectrum antibiotic | (I) | Furacin |
| (B) | Antiseptic | (II) | Sulphur dioxide |
| (C) | Disinfectants | (III) | Penicillin-G |
| (D) | Broad spectrum antibiotic | (IV) | Chloramphenicol |
Choose the correct answer from the options given below:
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.