25 Which one of the following is a reason why the Greeks were able to invent philosophy?
(A)They worried more about material needs and had less time to reflect.
(B)They suffered from palace bureaucracies and professional priests who stood against free speculation.
(C)The simplified Greek alphabet made it hard for people to read and think.
(D)Literacy and strengthened ideals of equality helped the Greeks to reflect more on many abstract subjects.