Answer:
A) The author's last name is used in your work.
Step-by-step explanation:
When writing academic papers or other professional content writing, referencing other authors' work is important. It is done by citing within the text and a comprehensive reference list. When the source of information is the website, the in-text referencing include the surname of the author or authors in brackets followed by a period in APA referencing.
There are different referencing formats which depend on the personal preference or sometimes stipulated by the academic board which checks and “mark” the paper.