What Was the Most Significant Outcome of the Singh Decision

What was the most significant outcome of the Singh decision made by the Supreme Court of Canada?

A) It led to the creation of the Canadian Immigration Appeal Board.
B) It has created huge delays in the processing of refugee claims in Canada.
C) The definition of refugee was expanded to include a class of protected persons, thus honouring Canada's obligations under the Convention Against Torture.
D) A new refugee determination system had to be created to provide all asylum seekers with a full oral hearing on the merits of their claim.