John has added up all the beverages he consumes in a day and realizes that he consumes a total of 16 cups per day. Half of what he drinks (8 cups) is coffee because he is a truck driver and is on the road constantly. How much more water does John have to drink?
a. He is already consuming enough fluids
b. He needs to "make up" for half of the caffeinated beverages with water—so 4 cups
c. He needs to "make up" for all of the caffeinated beverages with water—so 8 cups
d. He should drink 2 additional cups of coffee or water per day
a
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