Which lossy compression system is designed to ignore certain picture detail that does not change from frame to frame?

Which character from Verdi's La Traviata is suffering from a terminal illness?

a. Alfredo b. Rigoletto c. the Count d. Violetta

Arguably the most essential ingredient in jazz is:

A) rhythm (syncopation). B) improvisation. C) the front-line instruments. D) the "standards."