Which video format is analog as opposed to digital?

In addition to commercial recording companies, which of the following had the greatest impact on the development of country music proper from its folk tradition roots?

A) Depression years B) World War II C) rural to urban migration D) radio broadcasting

Who wrote the music for the film The Plow That Broke the Plains and later arranged it into a suite for orchestra?

A) Aaron Copland B) George Gershwin C) Leonard Bernstein D) Virgil Thomson