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Cu 4. Lahasa Bookstore had 300 units (at cost $11 per unit), on hand at June 1. Purchases and sales during the month of June as follows: Jun.4 : Sale 150 Units @ $16/unit Jun.12. Purchase 250 units @$12/unit Jun.18: Sale 300 units @ $17/unit Jun.29: Purchase 50 units @$13/unit Fahasa maintains periodic inventory system. The Gross profit for the month ended June 30, under the LIFO method is: a. 2700 b. 2350 C. 2200