During strenuous exercise, lactic acid buildup in cells causes the creation of a hydronium complex known as the eigen cation (h9o4+). if water molecules then experience hydrogen bond attractions to the eigen cation, this attractive force:

Will result in a semi-stable shell of water molecules around the hydronium.  

Explanation:

A procedure is known as hydration also called solvation takes place when the attractive force of the molecule of ion leads to the formation of a thin shell of water molecules to envelope it. In the case of H3O+, that is, hydronium, each of the hydrogen atoms attracts the atom of oxygen in the molecule of water because of hydrogen bonding. These molecules of water will result in a shell of water molecules to encircle the hydronium.  

wait any answer choices plz

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!