Indicate how each of these changes would affect the call option price for a call that is currently trading in the market on IBM stock. - an increase in IBM's stock price would the call price. - an increase in the strike price would the call price. - an increase in the variance of IBM's stock returns would the call price. - an increase in the time to expiration for the call option would the call price. - an increase in the interest rates would the call price. - an increase in the dividends paid would the call price