In the Early Years of Experimental Psychology, Studies Often Used

In the early years of experimental psychology, studies often used three or four participants. How were the data handled?

A) the data were summarized as descriptive statistics (e.g., means) , but inferential statistics were not used
B) the data for each participant were presented in the results
C) only the most unambiguous data were presented
D) the results took the form of verbal descriptions; numbers were not used