If A,B,C,and D are all positive numbers,is the value of A B

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If A,B,C,and D are all positive numbers,is the value of A B greater than the value of C
(1) A + D = B + C
(2) A and B are each greater in value than either C or D.
(A) Statement (1) ALONE is sufficient to answer the question,but statement (2) alone is NOT sufficient.
(B) Statement (2) ALONE is sufficient to answer the question,but statement (1) alone is NOT sufficient.
(C) BOTH statements (1) and (2) TOGETHER are sufficient to answer the question,but NEITHER statement ALONE is sufficient.
(D) Each statement ALONE is sufficient to answer the question.
(E) Statements (1) and (2) TOGETHER are NOT sufficient to answer the question.

原题就是这样么?问号是不是什么数学符号?
貌似选B,光条件2就可以满足了

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