The Spread Is the Difference Between

The spread is the difference between:

A) The number of shares an issuer offered for sale and the number of shares for which they were paid.
B) The number of shares purchased by the underwriters and the number of subscriptions received.
C) The offer price and the end of the first day price for an IPO.
D) The offer price and the purchase price for the underwriter.
E) The end of the first day price of an IPO and the amount received by the issuer.