The inventory records for Radford Company reflected the following:

Beginning inventory @ May $1300$ units @ $$2\mathrm{.}20$

First purchase @ May $7400$ units @ $$2\mathrm{.}40$

Second purchase @ May $17600$ units @ $$2\mathrm{.}50$

Third purchase @ May $23200$ units @ $$2\mathrm{.}60$

Sales @ May $311,200$ units @ $$4\mathrm{.}10$

If the company uses the weighted$-$average inventory cost flow method, what is the average cost per unit $($rounded$)$ for May?

Multiple Choice

$$2\mathrm{.}53$

$$2\mathrm{.}43$

$$2\mathrm{.}39$

$$2\mathrm{.}48$