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