Sonata form emerged from which other musical form?

A concerto grosso contrasts

a. a soloist with the orchestra b. one half of the orchestra with the other half c. a small group of players with the rest of the orchestra d. one harpsichord with another harpsichord e. one harpsichord with two harpsichords

Which of the following is not true about Louis Armstrong's later career (in the 1940s, 1950s, and 1960s)?

a. he appeared in a number of Hollywood films b. he remained at the forefront of jazz development, pioneering new styles of playing c. he served as an official U.S. ambassador of goodwill on his worldwide tours d. he had a number of hit songs and became an icon of U.S. popular culture