Assume the following$$ information:

April $1$ Inventory$8$ units at cost of $ $10$

April $10$ purchase$10$ units at cost of $ $10$

April $12$ sale$11$ units

Using the perpetual inventory$$ system, what is the amount of cost of goods$$ sold?

A$.$$ $180$

B$.$$ $110$

C$.$$ $70$

D$.$$ $10$