Which of the following statements is incorrect? A. ...

Which of the following statements is incorrect? A. We can use s.iteritems() on a pd. Series object s to iterate on it. B. If s and s1 are two pd. Series objects, we cannot use s.append(s1) to directly append s1 to the existing series s C. loc and iloc are two useful and commonly used pandas method D. If s is a pd. Series object, then we can use s.loc[label] to get all the data where the index is equal to the label.