A Company Purchased 100 Units for $20 Each on January

A company purchased 100 units for $20 each on January 31.It purchased 100 units for $30 on February 28.It sold 150 units for $45 each from March 1 through December 31.If the company uses the Last-In,First-Out inventory costing method,what is the amount of ending inventory on December 31?

A) $1,500
B) $1,250
C) $1,000
D) $2,250