| LIST I | LIST II |
|---|---|
| A. Mesh topology | III. Each node is connected to two other devices, one each on either side |
| B. Ring topology | IV. Each communicating device is connected with every other device |
| C. Bus topology | I. Single backbone wire shared among the nodes |
| D. Star topology | II. Each communicating device is connected to a central networking device |
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?