| Assertion (A): | Acylation of amines gives a monosubstituted product whereas alkylation of amines gives a polysubstituted product. | 
| Reason (R): | Acyl group sterically hinders the approach of further acyl groups. | 
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). | 
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). | 
| 3. | (A) is True but (R) is False. | 
| 4. | (A) is False but (R) is True. | 
 
                    
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