Which of the following statements is true?
a. from the 1920s to 1940s, the radio was growing quickly as a source of political news.
b. from the 1920s to 1940s, the television was growing quickly as a source of political news.
c. from the 1880s to 1890s, the internet was decreasing quickly as a source of political news.
d. from the 1880s to 1890s, the newspaper was decreasing quickly as a source of political news.