What was a "fireside chat"

a
When president Hoover used the Television for the first time to talk to the American people.
b
When FDR used the radio to speak to the American people.
c
When president Wilson talked to the Germans during WWI while sitting around a camp fire
d
When poor people during the Depression had to sit around camp fires to stay warm.

Although the chats were initially meant to garner Americans’ support for Roosevelt’s New Deal policies, they eventually became a source of hope and security for all Americans. Fireside chats were constructed by a committee of Roosevelt’s speech writers and advisers, but Roosevelt was an integral part of the process; he often wrote the conclusions and even changed some of the text while speaking on-air. The chats were scheduled sparingly so as to maintain their importance among his other frequent radio and public addresses. Reporter Harry Butcher of CBS coined the term “fireside chat” in a press release before one of Roosevelt’s speeches on May 7, 1933. The name stuck, as it perfectly evoked the comforting intent behind Roosevelt’s words, as well as their informal, conversational tone. Roosevelt took care to use the simplest possible language, concrete examples and analogies in the fireside chats, so as to be clearly understood by the largest number of Americans.