The Alberta Court of Appeal Decision in Walter Stewart Realty

The Alberta Court of Appeal decision in Walter Stewart Realty Ltd. v. Traber involves a breach of confidentiality. What does this case illustrate?

A) A breach of confidence not only involves conveying that confidential information to someone else but can also include using it inappropriately for one's own purpose.
B) Using information obtained from someone else will always result in a legal action, regardless of the type of information or the manner in which the information was obtained.
C) Using confidential information is a good idea, as it can provide significant business and legal advantages.
D) Using confidential information is unethical, but cannot be the basis for a civil action.
E) A breach of confidence requires that confidential information be conveyed to someone else; using it inappropriately for one's own purpose is not sufficient.