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A linear programming problem is as follo...

A linear programming problem is as follows: Minimize Z= 30x + 50y subject to the constraints,
`3x+5y ge 15`
`2x+3y le 18`
`x ge 0, y ge 0` In the feasible region, the minimum value of Z occurs at

A

a unique point

B

no point

C

infinitely many points

D

two points only

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