Identify the meter heard in the listening example

Which statement best describes this composition?

a) an example of polyphony in which the two voices move at the same rhythmic rate b) an of monophony that mixes with polyphony; the polyphonic sections feature two voices moving at the same rhythmic rate c) an example of monophony only d) an example of polyphony in which multiple notes in the top voice move over the sustained single notes of a lower voice

A sculpture in which 3-dimensional forms are carved from a flat background is known as...

A. a mural. B. a fresco. C. a column. D. relief sculpture.