3. The volatility of a non-dividend-paying stock whose price is $80, is 30%. The risk-free rate is 5% per annum (continuously compounded) for all maturities. What is the value of a six-month European call option with a strike price of $80 given by a two-step binomial tree. Suppose a trader sells 1,000 options (10 contracts). What position in the stock is necessary to hedge the traders position at the time of the trade