The Accompanying Figure Depicts the Downward-Sloping Market Demand (D) Curve

The accompanying figure depicts the downward-sloping market demand (D) curve for a five-day western Caribbean cruise on Carnival Cruise Lines. The price (P) is per person in U.S. dollars, and the quantity (Q) is the number of passenger tickets sold. This figure also shows the company's relevant marginal revenue (MR) curve and marginal cost (MC) curve. Use this figure to answer the questions.
-If this cruise line faces a perfectly competitive market, calculate its consumer surplus.

A) $400,000
B) $600,000
C) $800,000
D) $1.2 million
E) $1.6 million