Which Baroque idea does Ligeti use in Hungarian Rock?

A traditional metalpoint ground recipe calls for a mixture of:

A. bone ash. B. glue. C. white pigment. D. water. E. All of the answers are correct.

An "a capella" chorus

a. can have "mixed" voices of men and women. b. is always performed in a chapel. c. uses organ accompaniment. d. all of the above.