Parenthetical citations are described as the reference or citations to a specific information, quote, or paraphrasing from the text or from some other source.
As per the question, an in-text or parenthetical citation (in MLA format) must need information of the 'author's last name' followed by 'the page number'. This reflects that the author is properly acknowledging the original sources or references which have been referred to in the work or paper. For example; ('Lawrence, 123'). Therefore, options B and E are the correct answers.
If they are writing a biography, they are describing every aspect of a person’s life in detail. Writing chronologically would give insight to the characteristics and development of an individual’s life. Therefore, your answer is B.