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.