Final answer:
Option C, which states that a study showed that mice treated with zeatin were protected from memory loss, would be strong evidence in support of the advertisers' claims about coconut water.
Step-by-step explanation:
The strong evidence that supports the advertisers' claims can be found in option C:
A study showed that mice treated with zeatin, a plant hormone commonly found in coconut water, were protected from memory loss.
This study provides a direct link between the consumption of coconut water and a specific health benefit. It shows that the compound zeatin, found in coconut water, can provide protection against memory loss in mice. This evidence supports the claim that coconut water has health benefits and justifies the advertisers' claims.