During the 1930's, franklin roosevelt was the first president to use the medium of radio to reach a mass audience in his fireside chats. why was it so important that roosevelt be such an effective communicator?

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.

i think it's b