Read the passage. (1) placement in internet search engines involves a company paying a search engine to ensure that they come up first in an internet search, regardless of relevance. (2) internet search engines used to sell placement to companies. (3) internet search engines practiced placement for years. (4) users complained vehemently. (5) now, paid advertisements are offered above or beside a legitimate search return. (6) what is placement? where is the most effective placement for sentence 6? before sentence 2 before sentence 1 where it is now after sentence 3