Please help ASAP!! Which of the following is true of castles built during the early Middle Ages?

They were built by peasants to house their families.

They were constructed mainly out of stone.

They were places of refuge for nobles and peasants in time of war.

They were difficult to destroy by fire, and therefore many survive to this day.

What is the difference between a journal entry written by an eyewitness to an event and a play written about the same event? a. the journal entry is a historiographical source, while the play is a periodical source. b. the journal entry is a chronological source, while the play is a primary source. c. the journal entry is a primary source, while the play is a secondary source. d. the journal entry is a secondary source, while the play is a periodical source.