Some of the more difficult test questions I recall from graduate school examinations had to do with bipartite statements.
What one was asked to ascertain, as the test taker, was whether parts A and B were both true and related, true but unrelated, or if either part were false, or both were.
So options for answers would be:
A — both parts true and related
B — both parts true but unrelated
C — only part A was true
D — only part B was true
