6. Tom Edison is eating 5 avocados and 20 sugar apples. The marginal rate of substitution is the rate at which Tom is willing to trade sugar apples for an extra avocado. At his current consumption bundle of 5 avocados and 20 sugar apples, his marginal rate of substitution is 4. Compared to his current (a) Will Tom be better off if he instead consumes 6 avocados and 20 sugar apples? (b) Will Tom be better off if he instead consumes 6 avocados and 15 sugar apples? (c) Will Tom be better off if he instead consumes 7 avocados and 16 sugar apples? (d) Will Tom be better off if he instead consumes 6 avocados and 16 sugar apples