Froggy's Sunglasses is a perfectly competitive firm that sells sunglasses. Sunglasses sell for $36 each. The fixed costs of production are $50. The total variable costs are $30 for one unit, $40 for two units, $55 for three units, $85 for four units, and $140 for five units. What is the profit maximizing quantity? (Hint: you may want to draw and fill in the table below to determine the answer)

Quantity Fixed Costs Variable Cost Total Cost Revenue Profit