In Japanese sacred architecture, pagodas served as which of the following?

“Beats” in music are created when

A. knobbed gong instruments play with metallophones. B. one instrument is just slightly out of tune with another. C. drums create pulsating oscillations with each other. D. one instrument exactly matches the pitch of another.

How did Meyerbeer provide a measure of dramatic unity in his operas?

What will be an ideal response?