Option: B is the correct answer.
B. Rent
Fixed expense-
These are the expanses which do not change with the change in the level of production or sales.
The budget is divided into two parts--
1) Fixed expense
2) Variable expense
For a typical household the fixed expense comprises of rent, insurance premiums, other EMI etc.
The variable expense consist of extra expenses such as movie ticket, shopping etc.
Hence, the example of fixed expense is: Rent