Final answer:
The correct information for a parenthetical citation is the D. author's last name and the page number, as per APA citation guidelines.
Step-by-step explanation:
When creating a parenthetical citation, two pieces of information are typically included. These are the author's last name and the page number where the referenced information can be found.
For example, if you were citing a book, you would include these two pieces in your citation like so: (Smith, 23). This is in accordance with the guidelines of APA citation style, which is commonly used in various academic writings. In cases where the work's author is unknown, the title of the work would be used instead of the author's last name, and it would be accompanied by a page number if available.
The citations may differ slightly depending on whether the source is a book, article, journal, or online publication, but the essence remains the same: the author's last name and the specific location of the referenced material within the source.
The correct option for the information that goes into a parenthetical citation is D. Author's last name and page number.