Well, #1 is clearly out.
#2 is not it because the situation is the reverse; the states' laws cannot conflict with the federal laws.
Now, look up the following words at http://www.answers.com
reapportion
nonpartisan
bicameral
What do you think?
WHICH WOULD BE THE BEST CHOICE
The U.S. Congress is
1 the only democratically elected legislature in the world.
2 prohibited from passing laws that might conflict with state laws.
3 required to reapportion every year.
4 nonpartisan.
5 bicameral.
i CAN NOT FIND THE RIGHT ANSWER
2 answers
Do you understand the meanings of these words?
http://dictionary.reference.com/browse/bicameral
http://dictionary.reference.com/browse/bicameral