Determine which of the following statements about a long European call option and a short European put option on the same underlying asset is/are correct.

I. Both are long with respect to the underlying asset.

II. Both involve a possible purchase of the underlying asset in the future.

III. Both give you the right but not the obligation to buy the underlying asset at the strike price in the future.

(A) None 

(B) I and II only 

(C) I and III only 

(D) II and III only

(E) The correct answer is not given by (A), (B), (C), or (D)