Which term designates the musical form in which a single theme is passed from voice to voice or instrument to instrument?

What is a "break" in Dixieland jazz?

a. a two- or four-measure section in which everybody except the soloist stops playing b. a pause in between two pieces of music c. one iteration of a 32-bar AABA structure d. a collective term for all of the rhythm and harmony instruments

Euripides's The Bacchae includes this character:

a. Oedipus b. Agamemnon c. Socrates d. Pentheus