Which one of the following is incorrectly matched ?
| List-I (Term) | List-II (Meaning) |
| (A) Physiological density | Total population/Net cultivated area |
| (B) Agricultural density | Total agricultural population/Net cultivable area |
| (C) Population density | Total population/Total area |
| (D) Marginal worker | Total population/Total working population |

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?