Consider the Following Three Situations: X, Y, and Z

Consider the following three situations: X, Y, and Z. X:Company X has had securities traded on the NYSE for many years.
Y:Company Y is preparing to have its securities traded on an organized national exchange for the first time.
Z:Company Z is preparing an initial public offering through the mails.
The 1933 Securities Act would apply to:

A) situation X only.
B) situations Y and Z.
C) situation Z only.
D) situations X, Y, and Z.
E) situations X and Y.