Intervale Railway sells half of its tickets for the regular price of \($65\). The other half go to senior citizens and children for the discounted price of \($45\). Variable cost per passenger is \($10\) for both groups, and fixed costs total \($45,000\) per month. What is Intervale’s breakeven point in total passengers? Regular passengers? Discount passengers?

a. 1,000/500/500

b. 600/300/300

c. 1,500/750/750

d. 1,250/625/625