Gant Accounting Performs Two Types of Services, Audit and Tax

Gant Accounting performs two types of services, Audit and Tax. Gant's overhead costs consist of computer support, $300,000; and legal support, $150,000. Information on the two services is: $$\begin{array} { l r r } & \text { Audit } & \text { Tax } \\\text { Direct labor cost } & \$ 50,000 & \$ 100,000 \\\text { CPU minutes } & 40,000 & 10,000 \\\text { Legal hours used } & 200 & 800\end{array}$$ Overhead applied to audit services using activity-based costing is

A) $150,000.
B) $180,000.
C) $270,000.
D) $300,000.