Tigra Company Manufactures Engines II Supplier Data -Refer to the Figure

Tigra Company manufactures engines. Tigra produces all the parts necessary for its engines except for one electronic component, which is purchased from two local suppliers: Customer 1 and Customer 2. Both suppliers are reliable and rarely deliver late; however, Customer 1 sells the component for $10.00 per unit and Customer 2 sells the same component for $8.95. Hamilton purchases 70% of its components from Customer 2 because of the lower price. The total annual demand is 75,000 units.
I. Activity Data
$\begin{array}{ll}\text { Inspecting components (sampling only) } & \$ 190,000 \\\text { Reworking products (due to failed component) } & \$ 2,254,000 \\\text { Warranty work (due to failed component) } & \$ 1,723,000\end{array}$
II. Supplier Data
$\begin{array}{lrr}&\text { Customer } 1&\text { Customer } 2\\\text { Units Purchase Price } & \$ 10.00 & \$ 8.95 \\\text { Units Purchased } & 22,500 & 52,500 \\\text { Sampling Hours } & 50 & 2,450 \\\text { Rework Hours } & 135 & 3,625 \\\text { Warranty Hours } & 475 & 6,000\end{array}$
-Refer to the Figure.What is the activity rate for inspecting components on the basis of sampling hours?

A) $72.00 per hour
B) $76.00 per hour
C) $77.25 per hour
D) $78.00 per hour