Option Delta can best be defined as: Multiple Choice O The last day on which an option can be exercised. The act of buying or selling the underlying asset via the option contract. The change in the stock price divided by the change in the call price. The fixed price in the option contract at which the holder can buy or sell the underlying asset. Also the exercise price or strike price. A feature included in the terms of a new issue of debt or preferred shares to make the issue more attractive to initial investors