Adam Snuck Up on a Man Named Bill Who Appeared

Adam snuck up on a man named Bill who appeared to be sleeping on a bench in the park. When Adam grabbed the wallet that was protruding from Bill's hip pocket, Bill woke up. Adam and Bill got into a scuffle that resulted in Bill having a bloody nose. Adam has been charged with robbery which is defined as taking something of value from the immediate presence of a person by force or threat of force. Who will decide whether the facts establish that entrapment occurred if Adam presents this defense in a jury trial?

A) The judge acting as the trier of the facts.
B) The jury acting as the trier of facts.
C) The judge decides the legal issues; therefore the jury will not consider the facts involving entrapment.
D) In a jury trial the jury decides all of the legal and factual issues.