Stock of the current market price of $94, at the same time, a period of 3 months, executive price for European option price for $95 dollars, an investor think a stock price will rise, but he doesn't know whether should buy 100 shares, or 2000 (equivalent to 20 contracts) options, the two investment funds are all needed for $9400. What advice would you give at this point? At what level would the stock price rise to make options more profitable.