On December 1, 20x1 Pimlico Made Sales to a Customer

Multiple Choice

On December 1, 20x1 Pimlico made sales to a customer in India and recorded Accounts Receivable of 10,000,000 rupees. The customer has until March 1, 20x2 to pay. On December 1, 20x1, Pimlico paid $500 for a put option to sell rupees at a strike price of $2.30 per 100 rupees on March 1, 20x2, which was the spot rate on December 1, 20x1. On December 31, 20x1, the spot rate was $2.80 per 100 rupees and the option premium was $0.004 per 100 rupees.
-What is the fair value of the option on December 31, 20x1?

A) $0
B) $500
C) $400
D) $10,000