What are the net proceeds per share for you today if you would like to establish a Butterfly Spread on CTLT for the strike prices of $40, $45 and $50, with expiration on April 21, 2023? Butterfly Spread: Buy 2 calls with different Strike Prices and Write 2 calls with the Strike price that is in between the other 2 calls, such as C1,buy < 2*C2,write < C3,buy CTLT Current Price = $41.48

a. $20.30

b. $15.40

c. $0

d. -$0.70

e. -$5.60