How many non-negative integer solutions are there for the following equation such that 0 < x1 < 10? xi + x2 + x3 + x4 = 25 O ((28,3)-C(17,3) C(29,4)-C(11,3) O (28,4)-C(11,4) O (29,3)-(17,3) C(11,4) C(17,3) O (11,3) О (15,3)

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