49. Match List-I with List-II and select the correct answer using the codes given below the lists:
| Â List-I Â | List-II |
| a. Perfect competition | Â I. No control |
| b. Monopolistic competition | Â II. Some control |
| c. Oligopoly | Â III. Practically some control |
| d. Monopoly | IV. Usual control |