Ok, here's a quick quiz. Let's say you're preparing a nutrition and exercise display for the lobby of Fitness, Inc. Look at the list below and indicate the predominant fuel source for each of the activities shown.     1A. One Hour of Weight Lifting Carbohydrates Fats Proteins Vitamins Other 1B. One hour of walking at a very slow pace Carbohydrates Fats Proteins Vitamins Other 1C. 100 meter dash Carbohydrates Fats Proteins Vitamins Other 1D. 60 minute soccer game Carbohydrates Fats Proteins Vitamins Other 1E. 10 minutes of rowing at 32 strokes per minute Carbohydrates Fats Proteins Vitamins Other 2. Imagine you are preparing to discuss exercise nutrition with one of our clients who is an endurance athlete. You want to explain the relationship between training and fuel usage. What explanation would you provide to the client regarding the effect of training on fuel usage? A. Training helps endurance athletes to become better fat burners. B. Training helps endurance athletes to become better carbohydrate burners, but not better fat burners C. Training has no effect on fuel usage by endurance athletes