Final answer:
The issue of law from the given options is C. Some states forbid the sale of alcohol on Sundays, which is a legal matter enforceable by penalties and part of blue laws.
Step-by-step explanation:
The issue of law in the question provided is "C. Some states forbid the sale of alcohol on Sundays." Laws are rules established by a governing authority to regulate the behavior of a society and are enforceable by the imposition of penalties. This particular issue is related to blue laws, which are laws designed to enforce religious standards, such as banning certain activities on Sundays for religious reasons. Ellen wearing a black dress to a funeral and Ruth capitalizing 'He' when referring to God are examples of etiquette and religious practice, respectively, while knowing it's wrong to lie to one's father is a moral or ethical issue.
Applied ethics is the branch of ethics that concerns the practical application of moral considerations. It is concerned with determining the morality of specific actions in various fields, including law. When discussing laws that regulate the sale of alcohol, we engage in applied ethics by analyzing the morality and the societal implications of such legal constraints.