There are two kinds of books on the shelf, English and mathematics. What is the probability that at least one book is an English book when two books are selected from the shelf randomly?
1: The ratio of the number of English books to that of math books is 1:3.
2: The number of all of the books is less than 20.
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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 statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: E