1. Anna spends all her monetary income on Bread (B) and Milk (M), and has standard, \"well-behaved\" preferences over bundles of these two goods. The price of M is 2 and the price of B is 1. At the current consumption bundle, Anna exhausted her income and her marginal rate of substitution of milk for bread is \"l\". a) If Anna's current consumption bundle contains positive amounts of both goods, can we conclude that it is not optimal? Provide both a graphical solution and an intuitive explanation. b) Reconsider (a) for a bundle that contains only Bread