What is the ação controlada? a) A technique used to intercept phone calls without a court order. b) A type of police operation that involves the de...

What is the ação controlada?
a) A technique used to intercept phone calls without a court order.
b) A type of police operation that involves the delay of police intervention in order to gather more evidence and information.
c) A legal procedure that allows the use of illegally obtained evidence in court.