Answer:
b . Direct expense
Explanation:
Direct expense is an expense whose cost can be easily identified with a department due to the fact that the expense is incurred for the benefit of the department solely. This means that this expense can be traced directly to a department.
Also, some expenses are known to be directly related to buying of materials , products for use whether in a department or a company; such expenses are classified as direct expenses.
Examples of direct expense includes cost of raw materials , rent of factory, wages etc.