All References Cited in a Dental Hygiene Portfolio Must Be

All references cited in a dental hygiene portfolio must be formatted according to the National Library of Medicine Style Guide. It is not necessary to reference sources obtained from the Internet if they are open access.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, and the second statement is false.
D) The first statement is false, and the second statement is true.