According to the Federal Court of Canada,which of the Following

According to the Federal Court of Canada,which of the following is the question that must be asked at step 3 of the test used to determine the appropriateness of video surveillance?

A) Is the measure necessary to the specific needs?
B) Is there a less privacy-invasive way of achieving the same end?
C) Is it likely to be effective in meeting that need?
D) Is the loss of privacy proportionate to the benefit gained?