Melissa spent the week at an amusement park and used all of her money on rides and popcorn. Both rides and bags of popcorn are priced at $1 each. Melissa realizes that the last bag of popcorn she consumed increased her utility by 40 utils, while the marginal utility of her last ride was only 20 utils. What should Melissa have done differently to increase her satisfaction?

a. Reduced the number of bags of popcorn she consumed and increased the number of rides

b. Increased the number of bags of popcorn she consumed and reduced the number of rides

c. Decreased both the number of bags of popcorn and rides consumed

d. Increased both the number of bags of popcorn and rides consumed

e. Nothing; her utility was maximized.