G Co makes the following purchases and sales. 1 January Purchases 4,000 units for 2,000 15 February Sales 3,000 units for 3,750 14 March Sales 500 units for $1,200 At 31 March which of the following closing inventory valuations using LIFO is correct?
A．$6,500
B．$8,000
C．$7,000
D．$7,500