Your friend Tom knows that you are taking a psychology class, so over lunch one day he tells you of a "bad habit" he has that has persisted for a couple of years. He says that when he gets dressed in the morning he puts on and takes off his pants at least a hundred times, because each time he puts one leg into the pants, the other leg needs to be "evened out." This behavior pattern has caused him to be late for classes and work, as well as to cause him overall distress. You suspect Tom is suffering from disorder.
A. posttraumatic stress
B. generalized anxiety
C. obsessive-compulsive
D. rechecking