Nika Rad has saved up $$5000$ to invest. There are five possible investment funds each with an expected annual return and a risk level which are provided in the attached workbook. No more than $40\%$ of the $$5000$ should be invested in any one fund. Nika wants to invest the full $$5000,$ achieve a return of at least $8\mathrm{.}5\%,$ with minimum risk.

Which of the following are true about the linear programming formulation of this problem?

Group of answer choices

There are $5$ decision variables.

There are $5$ constraints.

It is a maximization problem.

There are non$-$zero lower bounds on the decision variables.

Exactly two answers are correct.

None of the answers are correct.