Robert Is a Drug Dealer

Robert is a drug dealer.One evening he hears the front door of his trailer house swing open and someone shout,"Police! Search warrant." Robert grabs several bags of cocaine from the top of a table.He rushes to the bathroom and tosses the bags in the toilet bowl.He flushes the toilet just as a police officer enters the bathroom.Unfortunately for Robert,the police had already disconnected the sewer line from the trailer and the bags of cocaine spill out onto the ground.In addition to drug charges,Robert has committed:

A) interference with public duties.
B) misprision of a felony.
C) tampering with or fabricating physical evidence.
D) failure to report a felony.