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Suppose that a system of linear equations is underdetermined. Which of the following MUST be true about the system? Select ALL that apply.

The system is consistent.

The system is inconsistent.

There are more variables in the system than there are equations.

There are more equations in the system than there are variables.

If the system is consistent, then it has infinitely many solutions.

If the system is consistent, then it has exactly one solution.

None of the above.