What amount did Jean earn from the commission on her sales in the first half of 1988 ?
(1)In 1988 Jean's commission was 5 percent of the total amount of her sales.
(2)The amount of Jean's sales in the second half of 1988 averaged $10,000 per month more than in the first half.
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.