Using carbo-loading to increase the store of glycogen seems to benefit only those athletes who engage in aerobic activities that are

Carbo-loading is good for athletes that do aerobic activities that are NOT IMMEDIATE.  
                                         Explanation
        This is because carbohydrates are polysaccharides, and they take longer to break down and turn into energy.  That's why it is better to eat carbs the night before a big race/game/meet/regatta/competition, because then you get the benefits f the energy the following.  An example of this would be a runner.  The athlete may eat pizza Friday night for a Saturday track meet.  They wouldn't feel energized Friday night, but the following day because their body had time to break down the carbs.  If you need quick energy(i.e. a couple hours before a race, then you should eat monosaccharides, such as a banana or an apple.  This is because monosaccharides take less time to break down, and therefore give you a quicker burst of energy.


Hope this helped! :)

Ithink the answer is 1. warmth

The answer to this is true