The Constitution's Doctrine of "Privileged Speech" Has Been Interpreted by the Supreme

The Constitution's doctrine of "privileged speech" has been interpreted by the Supreme Court to mean

A) that members of Congress cannot be sued or prosecuted for anything that they say or write in connection with their legislative duties.
B) that members of Congress do not have privileged status protecting their legislative speech.
C) that members of Congress can issue press releases that are libelous.
D) that members of Congress can issue press releases with information from classified documents.
E) that members of Congress can be sued or prosecuted for what they have read into the Congressional Record.