Answer:
b. it can be traced to a division in a cost effective manner.
Explanation:
Direct costs are those costs which can be directly attributable to a product, activity or a department. For example, direct material or direct labor are direct costs.
These refer to those costs which are incurred specifically for a product, service or incurred for a particular department. Usually such costs are variable i.e they usually vary with the level of production.
Direct costs can be specifically traced so they need not be allocated to any product or a department.