| List I | List II | ||
| A. | Political | I. | Impact of carbon emission |
| B. | Economic | II. | Lifestyle changes |
| C. | Social | III. | Government stability |
| D. | Ecological | IV. | Interest rates |
In a sequence of numbers, each term is generated by multiplying the previous term by 2 and then subtracting 1. If the first term is 3, what is the fourth term in the sequence?
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?