Citation is elucidated as the acknowledgment of a source that has been referred to in the text in order to establish the credibility of the work and avoid plagiarism.
As per the MLA guidelines, <u>in-text citations</u> follow a format in which the author's last name is followed by the page number and these are together enclosed in parentheses. Thus, <u>option A</u> i.e. (Jennings 88) follows this format where the last name of the author('Jennings') correctly precedes the page number(88).