When a Group of Investment Banks Buys All of the Securities

When a group of investment banks buys all of the securities from the issuer and then resells those securities to investors, that group and that process are known in what way?

A) This is accomplished by an underwriting syndicate; the process is called underwriting.
B) This is accomplished by a banking collective; the process is called underwriting.
C) This is accomplished by equity traders; the process is called a roadshow.
D) This is accomplished by bond traders; the process is called a roadshow.