A Congressional bill can become a law without presidential assent when
-
A.
the president is careless enough to forget to sign the bill into law within a certain number of days -
B.
a bill was, in the first instance passed by both Houses of Congress with a two thirds majority -
C.
each of the two Houses voting with a two-thirds majority passes a bill which has been vetoed by the president -
D.
the country is at war -
E.
in none of the conditions stated above