Final answer:
Darcy may have grounds to sue Emma for defamation, but the outcome would depend on the jurisdiction and circumstances. Consulting a lawyer is recommended.
Step-by-step explanation:
Darcy's email mocking their supervisor and criticizing the food they serve could be considered defamatory. Defamation involves making false statements that harm someone's reputation. Emma giving the printed email to their boss could be seen as defamatory as well, as it implied that Darcy's statements were true or reliable.
However, whether or not Darcy can successfully sue Emma for defamation will depend on the specific laws and circumstances of the jurisdiction they are in. Some jurisdictions have laws protecting individuals from liability when they report misconduct to their employers. Additionally, if there is evidence of malice or intent to harm, it could affect the outcome of the case.
It is always advisable to consult with a lawyer or legal expert to get accurate advice based on the specific situation and jurisdiction.