Allium Industries Has Fixed Costs of $1,000 and Variable Costs

Allium Industries has fixed costs of $1,000 and variable costs of $5,000 when it produces 1,000 units. The market price of Allium Industry's product is $4. Which of the following statements is true?

A) This firm should shut down immediately.
B) This firm should produce the quantity where marginal cost equals $4.
C) This firm is covering all of its costs.
D) This firm is producing the quantity that minimizes average total cost.