Syllogism 4G Given the Following Syllogism

Syllogism 4G
Given the following syllogism:
Only registered voters are called for jury duty, so Joann must not be a registered voter, since she was not called for jury duty.
-For Syllogism 4G, the conclusion is:

A) No persons identical to Joann are registered voters.
B) All persons identical to Joann are persons not called for jury duty.
C) All registered voters are persons called for jury duty.
D) No unregistered voters are persons called for jury duty.
E) All persons identical to Joann are not registered voters.