An example of passing disease Person to Person would be A. TOUCHING A DOOR KNOB.
Touching an infected door knob is a form of indirect contact. The door knob is already contaminated when an infected person touches it. The contamination will also affect you when you are the one who followed the infected person and touched the door knob after that person. Transmission of the disease happens when you touch your mouth, nose, or eyes with the hand that touched the door knob without washing it thoroughly.