When a Citation Includes Six or More Authors, You Should

When a citation includes six or more authors, you should

A) always include each author's last name in the citation.
B) include each author's last name in the first citation; subsequent citations include the first author's last name followed by et al.
C) include only the first author's last name in each citation followed by et al. (the other authors are listed in the reference section) .
D) always include the first two authors' last names in each citation (the other authors are listed in the reference section) .