Which form alters each successive repetition of the melody?

Charlemagne revived an interest in the classical world in

a. the 6th century. b. the 9th century. c. his seat at Aachen. d. his seat at Aachen in the 9th century.

Which of the following would commonly be considered an element of a group’s culture?

a. cave paintings b. success in warfare c. longevity d. geographical origins