Answer:
c. Familiar phrases
Explanation:
While generating password for any site , application or account , it is the human tendency to select a password which has some known phrases , which the person tends to remember easily .
As , people are scared to forget the password , so to be on the safe side ,
People select some familiar words like , name of his or her pets , family member , spouse etc.
Hence , from the given information of the question,
The correct term is c. Familiar phrases .
