Most 1960s rock bands projected a collective identity

Which characteristics define many of the recordings of the ECM record label?

a. A raw, lo-fidelity sound and a focus on blues based material b. An emphasis on dense, dissonant harmonies c. A pristine sound quality and an emphasis on continuity of mood d. Electric instruments, heavy swing feeling and a freewheeling mood

What structure did the Roman emperor Nero have the architects Severus and Celer build after the great fire of 64 CE?

A. Forum B. Palace C. Colosseum D. Market