What Did the Supreme Court of Canada Decide About the Right

What did the Supreme Court of Canada decide about the right to silence in R. v. Singh (2007) ?

A) The police have to stop QUESTIONing suspects when they ask the officers to stop.
B) The police can use legitimate means of persuasion in order to get a suspect to talk.
C) The right to silence occurs at both the pre-trial and post-trial stages of a criminal case.
D) The suspect has the right not to give full answers to the police.