What Factors Should Be Taken into Account When Planning Competition

What factors should be taken into account when planning competition nutrition strategies in cold weather?

A) The ability of the athlete to open the packaging of sports nutrition products
B) Sodium losses are usually high and need replacement
C) Vitamin C supplementation will help to avoid athletes catching a cold
D) Protein requirements increase by 25% in cold environments
E) The taste of sports nutrition products changes dramatically, so athletes may prefer different flavours