If gross requirements are 2,000, inventory on hand is 3,000, reorder point is 500, and EOQ is 1,300, the order quantity is A. 3,000 B. 2,000 C. 7,000 D. zero E. None of the above

The correct answer is $\boxed{\text{B. }2,000}$.

The order quantity is the amount of an item that is ordered each time an order is placed. It is calculated by taking the gross requirements, subtracting the inventory on hand, and adding the safety stock. In this case, the gross requirements are 2,000, the inventory on hand is 3,000, and the safety stock is 500. Therefore, the order quantity is $2,000 – 3,000 + 500 = 2,000$.

Option A is incorrect because it is the inventory on hand, not the order quantity.

Option C is incorrect because

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