The price of a stock is ¥64. A trader buys 1 put option contract on the stock with a strike price of ¥60 when the option price is ¥10. When does the trader make a profit?
A、When the stock price is below ¥60
B、When the stock price is below ¥64
C、When the stock price is below ¥54
D、When the stock price is below ¥50