Matt Company uses activity$-$based costing. The company has two products: A and B$.$ The annual production and sales of Product A is $10,000$ units and of Product B is $8,000$ units. There are three activity cost pools, with estimated total cost and expected activity as follows:The cost per unit of Product A under activity$-$based costing is closest to which of the following? $($Round your final answer to $2$ decimal places.$)$

Multiple Choice

$$10\mathrm{.}59$

$$2\mathrm{.}40$

$$6\mathrm{.}78$

$$6\mathrm{.}60$