How did the chinampas the aztec economy

Which of following most accurately describes china today?

What does the document of the birtish octopus is an uderlying cause of the world war 1

Wire campaign finance laws administered by the fec not well enforced? a campaign finance rules are difficult to enforce b the fec has been plagued by corruption? c the fec does not have enough staff or funding d the fec was only created by the america vote act of 2002