The correct option is D staying with and using items of an infected individual
Causative agent of common cold is Rhinovirus. Transmission occurs from coming in contacct with aerosols from an infected person, contact with infected surfaces.
However it is highly infectious and infection spreads rapidly.
Infection can be reduced and prevented largely by wearing a mask, covering the nose and mouth while sneezing and coughing, avoiding crowded areas when ill, practising hand hygiene like using a sanitizer before touching surfaces, etc