He ancient Greek society was a mixture of slaves and free people. Slaves did not have any legal rights. According to records found in the General State Archives of Greece, the slaves lived with their owners and were rarely paid. Most slaves were either taken as prisoners of war or were bought as slaves. Some of the slaves were skilled craftsmen, but this did not guarantee pay from their masters. What makes the passage seem credible?

A.
The passage is short and easy to read, despite being negative.
B.
The passage states a credible source, the General State Archives of Greece.
C.
The passage reflects very poorly on the ancient Greek society.
D.
The passage seems to be written by an experienced historian.