Brianna is trying to achieve the optimum combination of bags of almonds and bags of dried mangoes she should buy with her $20 budget. The price of almonds is $5 per bag and the price of dried mangoes is $4 per bag. If Brianna's marginal utility from consuming her last bag of almonds is 15 utils and her marginal utility from consuming her last bag of mangoes is 12 utils, Brianna should consume more mangoes and fewer almonds. consume more almonds and fewer mangoes. consume more mangoes and more almonds. not change her consumption. She has achieved her consumer optimum