Which of the following is false about one-to-one merging?
a) The new dataset contains all variables from all input data sets
b) If there are same-named variables, the last dataset's variable replaces the earlier dataset's variable
c) The new dataset contains the total number of observations in the smallest original dataset
d) None of the above
Answer: C


求问如何理解C选项是错的呢？表示读得有点晕