Answer: the authors last name
Explanation:
In MLA format, works cited are typically last name, first name, title of work, publication date and page numbers
This would be an internal conflict. Also known as a Person Vs Self conflict.
Citation of a source creates a MLA or APA format.
In this sentence the correct answer is A. work on
I hope I've helped!
For anyone who still needs the answer it is ''conservation''