Match the following:
| Compound | Reaction Type |
| A. CH2=CH2 | I. Electrophilic substitution reaction |
| B. CH3COOCH3 | II. Nucleophilic substitution reaction |
| C. C6H6 | III. Electrophilic addition reaction |
| D. CH3Cl | IV. Nucleophilic addition reaction |





Consider the following reaction of benzene. the percentage of oxygen is _______ %. (Nearest integer) 