The example given in paragraph 4 shows that people’s collective memory... 1. ...is a reliable source of information. 2. ...can be influenced by grand events. 3. ...unlike a person’s memory, never fails. 4. ...could be changed by a royal decree.

The example given in paragraph 4 shows that people’s collective memory... 1.  ...is a reliable source of information. 2.  ...can be influenced by grand events. 3.  ...unlike a person’s memory, never fails. 4.  ...could be changed by a royal decree.