Which of the following statements is true?

Multiple Choice

For both calls and puts an increase in the exercise price will cause an increase in the option price.

For both calls and puts an increase in the time to expiration will cause an increase in the option price.

For calls, but not for puts, an increase in the time to expiration will cause an increase in the option price.

For puts, but not for calls, an increase in the time to expiration will cause an increase in the option price.