The current price of a stock is R200 and three-month European call options, with a strike price of R205, currently sell for R12.50. An investor, who feels that the price of the stock will increase, is trying to decide between buying 100 shares or buying 1 600 call options. Both strategies involve an investment of R20 000. Calculate the profit for both alternatives, if the price increases to R210, and indicate which alternative the investor should choose. How high does the stock price have to rise for the option strategy to be more profitable?