price of the knock-out call

1. Repeat the previous problem for up-and-out puts assuming a barrier of $44.
2. Let S = $40, K = $45, s = 0.30, r = 0.08, and d = 0. Compute the value of knockout calls with a barrier of $60 and times to expiration of 1 month, 2 months, and so on, up to 1 year. As you increase time to expiration, what happens to the price of the knock-out call? What happens to the price of the knock-out call relative to the price of an otherwise identical standard call?