"Sigma Limited, a gold manufacturer, hold a long call European option with an exercise price of $500 per ounce for 100 ounces only to be exercised in 6 months. The premium is $50 per ounce. If market gold price after 6 months is $400 per ounce, what would be the gain or loss assuming no time value of money."

A)-$15,000"

B)"$5,000 "

C)"$15,000 "

D)"-$5,000"