This is more a biology question but anyway....
G = the dominant gene aka. the one that is most likely to be seen because it is stronger than g. GG and Gg will both show the dominant gene's characteristics.
g = the recessive gene. The only way this one's type can be seen in gg form with no dominant gene to overpower it
Whenever a sports person engages in a physical activity, there is a lot of sweat. The sweat causes loss of water and electrolytes in the body. So, both need to be restored back to the required amount in the body.
ELECTROLYTES AND WATER.
The statement labeled as (a) is the correct one on that list.
