From 2005 to 2006, by what percent did the sales of Company A increase?
(1) In 2005, the sales for Company A were 1/4 of the sales of Company B.
(2) In 2006, the sales for Company A were 3/4 of the sales of Company B.
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(1) In 2005, the sales for Company A were 1/4 of the sales of Company B.
(2) In 2006, the sales for Company A were 3/4 of the sales of Company B.
[Reveal] Spoiler:
Why isn't it C?