| List -I | List-II | ||
| A | Buna-S | I | Vinyl chloride |
| B | Neoprene | II | 1,3-Butadiene and styrene |
| C | PVC | III | Tetra flouroethene |
| D | Teflon | IV | Chloroprene |

The following data shows the number of students in different streams in a school: 
Which type of graph is best suited to represent this data?