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Corner points of the feasible region determined by the system of linear constraints are `(0, 3), (1, 1) and (3, 0)`. Let `z=px+qy`, where `p, q gt 0`. Condition on p and q so that the minimum of z occurs at (3, 0) and (1, 1) is

A

`p=q`

B

`p=2q`

C

`p=(q)/(2)`

D

`p=3q`

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