Jack Has Been Using Heroin in His Apartment Every Day

Multiple Choice

Jack has been using heroin in his apartment every day for the past two months.He finds that now it takes more heroin to get him high.He is planning on using heroin tonight at a party at his friend's apartment.Which of the following is the most likely outcome?

A) Jack will find he has developed tolerance, so he will need more heroin.
B) Jack will find that he needs more heroin because of the different environment.
C) Jack will risk overdosing because he needs less heroin in the different environment.
D) Jack will find he needs the same amount of heroin as when he uses at his apartment.