Table $17-17.$ Consider a small town that has two grocery stores from which residents can choose to buy a gallon of milk. The store owners each must make a decision to set a high milk price or a low milk price. The payoff table, showing profit per week, is provided below. The profit in each cell is shown as $($Store $1,$ Store $2).$

Store $2$

Low Price

High Price

Store $1$

Low Price

$(500,500)$

$(800,100)$

High Price

$(100,800)$

$(650,650)$

Refer to Table $17-17.$ If grocery store $1$ sets a low price, what price should grocery store $2$ set? And what will grocery store $2\text{'}$s payoff equal?

$1.$

High price, $$800$

$2.$

Low price, $$500$

$3.$

Low price, $$100$

$4.$

High price, $$650$