Jill Was Found Stabbed to Death

Jill was found stabbed to death.Given the history of domestic abuse,the police suspected Jack (Jill's husband) .After having been read his rights,Jack waived his rights and told the officers that he wanted to cooperate.Officer Jones,with knowledge that Jack was uneducated and not very smart,told jack: "Don't worry about a thing.When a person dies,the last thing that she sees becomes frozen onto her retina.With the new technology that we have we can easily find out who was the person that stabbed your wife by simply developing the image on her retina as if it was a film." Jack,fearing that the image was going to be his,confessed.At his trial,Jack's confession will probably be

A) excluded because it is coerced.
B) admitted because deception is not necessarily coercion.
C) excluded because Jack's Fifth Amendment rights were violated.
D) admitted because deception,even an outright lie,is always permissible.