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Que. In an M'N matrix such that all non-zero entries are covered in a rows and b columns. Then the maximum number of non-zero entries, such that no two are on the same row or column, is
a. ≤ a + b
b. ≤ max {a, b}
c. ≤ min {M-a, N-b}
d. ≤ min {a, b}
Answer:≤ min {a, b}
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