January $1$: Beginning balance of $18$ units at $$13$ each

January$12$: Purchased $30$ units at $$14$ each

January $19$: Sold $24$ units at a selling price of $$30$ each

January$20$: Purchased $24$ units at $$17$ each

January $27$ : Sold $27$ units at a selling price of $$30$ each.

If the ending inventory is reported at $$357,$ what inventory method was used:

A$.$ LIFO

B$.$ FIFO

C$.$ Weighted average

Specific identification

E$.$ Retail inventory method