8. The five factors affecting prices of call and put options Both call and put options are affected by the following five factors: the exercise price, the underlying stock price, the time to expiration, the stock's standard deviation, and the risk-free rate. However, the direction of the effects on call and put options could be different. Use the following table to identify whether each statement describes put options or call options: Put Option Call Option Statement 1. As the risk-free rate increases, the value of the option increases. o O 2. A longer maturity in-the-money option on a risky stock is more valuable than the same shorter maturity O O option. 3. An option is more valuable the longer the maturity. 4. When the exercise price increases, option prices increase. O