How did Ballard find the Titanic?

Robert Ballard, found the Titanic over two miles below the ocean's surface by using an unmanned submersible called Argo. This discovery gave new meaning to the Titanic's sinking and gave birth to new dreams in ocean exploration

the answer is b.2008 and 2012 were presidential election years.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44