Answer the following:

An American call option has a strike price of $40 and the underlying stock price is $43/share with no future dividend payout. The applicable risk-free rate for the maturity of this option is 3%. The upper and lower bounds for this American call are

	A.	43 and 0.
	B.	43 and 3.
	C.	positive infinity and 4.165.
	D.	43 and 4.165.

Which of the following most accurately describes the sensitivity of the call option's delta to changes in the underlying asset's price? The sensitivity to changes in the price of the underlying is the greatest when the call option is:

	A.	far from expiration.
	B.	in the money.
	C.	at the money.
	D.	out of the money.