Read the following SAT test question and then click on a button to select your answer.

　　The sum, product, and average (arithmetic mean) of three integers are equal. If two of the integers are 0 and -5, the third integer is

　　(A) -5

　　(B) 0

　　(C) 2

　　(D) 5

　　(E) 10

　　Explanation

　　You have three integers, 0,-5, and x, whose sum, product, and average are equal. Since 0 is one of the numbers, the product is 0. So the sum and average are also equal to 0. Therefore, -5 + x + 0 = 0, and x = 5.

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（编辑：马菲）