Use this sensitivity report to answer the questions below.

If the cost per hour to operate Mine $1$ was $$170$: Would $(1,3)$ remain optimal? What minimum Cost could be realized?

Question $8$ options:

That represents a decrease in the first objective function of $30,$ which is not within the allowable decrease of $40.$ Thus, $(1,3)$ will not be remain optimal

That represent a decrease in the first objective function coefficient of $30,$ which is within the allowable decrease of $40.$ Thus, $(1,3)$ will remain optimal. The minimum cost will now be $$650$

That represents a decrease in the second objective function of $30,$ which is not within the allowable decrease of $93.$ Thus, $(1,3)$ will not be remain optimal

That represents a decrease in the second objective function of $30,$ which is within the allowable decrease of $93.$ Thus, $(1,3)$ will be remain optimal. The minimum cost will now be $$650$