A call option (Select all that apply) Select 3 correct answer(s) a) requires the buyer to pay a fee upfront, called a premium. b) can be exercised when when the price of the underlying stock exceeds the "strike price" of the option C) is an agreement to transact involving the immediate exchange of assets and funds. d) is a contract that gives a purchaser the right, but not the obligation, to buy an underlying security from the writer of the option at a specified price on or before a specific date