Answer: D - Was nullified by Richard Nixon's signing statement.
Explanation:
The War Power Acts is the resolution by congregation to limit the power of a sitting president from sending or withdrawing military actions abroad. The law also requires the president to inform the congregation on any action taken on military abroad. It was enacted into law in 1973, purposely to avoid any lengthy conflict. President Richard Nixon's was the first person to criticize the law as "unconstitutional" and hence nullifed it.