Which of the Following Investors Would Be Happy to See

Multiple Choice

Which of the following investors would be happy to see the stock price rise sharply?
I.An investor who owns the stock and a put option;
II.An investor who has sold a put option and bought a call option;
III.An investor who owns the stock and has sold a call option;
IV.An investor who has sold a call option

A) I and II only
B) III and IV only
C) III only
D) IV only