Using the following information, compute the total actual cost of direct materials used.
• Direct materials standard cost: \(5 \mathrm{lbs} . \times \$ 2\) per lb. \(=\$ 10\).
• Total direct materials variance: \(\$ 15,000\) unfavorable.
• Actual direct materials used: \(300,000 \mathrm{lbs}\).
• Actual units produced: 60,000 units.
a. \(\$ 585,000\)
b. \(\$ 600,000\)
c. \(\$ 300,000\)
d. \(\$ 315,000\)
e. \(\$ 615,000\)