Orion is catering a dinner party for more than 30 guests. Each guest has a choice between a vegetarian dinner or a steak dinner. The vegetarian dinner is $20 per plate and the steak dinner is $30 per plate. Orion can spend no more than $770 on the entire party. If Orion wants to purchase the most amount of food and still stay within budget, which combination of vegetarian and steak dinners is optimal? (2 points) a (28, 7) b (22, 11) c (37, 1) d (34, 3)