One of the Most Important Aspects of Problem Solving Is

One of the most important aspects of problem solving is the application of the law to the facts, but which ONE of the following does this actually require?

A) The identification of specific pieces of legislation that are needed to answer the question.
B) Providing a concise summary, i.e. no more than two sentences, that outlines the facts of every case that is mentioned in your answer.
C) Identification of the situations in the set of facts that give rise to the need for legal advice.
D) Relating the law to a particular set of facts in order to determine whether the requirements of the law are satisfied.