Using the bottleneck method, what is the profit if the company manufactures the optimal product mix $($consider variable costs only$-$overhead is not included in this profit calculation$)?$

less than or equal to $$6,500$

greater than $$6,900$

greater than $$6,500$ but less than or equal to $$6,700$

greater than $$6,700$ but less than or equal to $$6,900$