ggsurvplot() versus ggsurvplot_df()

What is the difference between the ggsurvplot_df() function and the ggsurvplot() function?

Take a look at the help files of the two functions to determine your answer.

?ggsurvplot_df
?ggsurvplot

Possible Answers

ggsurvplot_df() allows for argument fit to be a data.frame, while ggsurvplot() does not.
ggsurvplot_df() allows for argument fit to only be a data.frame, while ggsurvplot() allows different types of objects.
ggsurvplot() is a special case of ggsurvplot_df().