Read the following premise and answer if the hypothesis is true.
Effie Crockett (1857 - January 7, 1940), also known as Effie I. Canning, also known as Effie C. Carlton, was an American actress. She is credited with having written and composed the lullaby "Rock-a-bye Baby"; by some accounts she created the song in 1872 while babysitting. Because of "Rock-a-bye Baby", she is credited in over 100 films, many made decades after her death.
Hypothesis: Effie Crockett was never known as Effie C.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
No
It's impossible to say. The given name "C." in "Effie C. Carlton" could stand for any number of given