MCQ

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To write the dual; it should be ensured that

1. All the primal variables are non $-$ negative.
2. All the bi values are non $-$ negative.
3. All the constraints are $\leq$ type if it is maximization problem and $\geq$ type if it is a minimization problem.

• A
  $\text{I}$ and $\text{II}$
• B
  $\text{II}$ and $\text{III}$
• ✓
  $\text{I}$ and $\text{III}$
• D
  $\text{I, II}$ and $\text{III}$