Sunland Company uses a periodic inventory system. Details for the inventory account for the month of January, $2020$ are as follows:

An end of the month $(\frac{1}{31}\frac{?}{20})$ inventory showed that $160$ units were on hand. If the company uses FIFO and sells the units for $$10$

each, what is the gross profit for the month?

$$1670$

$$680$

$$1380$

$$560$