You’re in the desert on an extremely hot day and become quite thirsty. Luckily you come upon a stand where they’re selling bottled water. You would be willing to pay $10 for the fi rst bottle, $5 for the second bottle, and $1 for the third. Luckily they’re charging just a dollar. (a) How many bottles do you buy? (b) How much is your marginal utility from the third bottle? (c) How much is the total utility you will get from the three bottles? (d) How much is your consumer sur plus?