Their performance varies considerable, they are often idle, and then might have an occasional flurry of activity. For example, if their attendance is sporadic, they may have good attendance for a while, and then disappear unpredictably from time to time.
The different rules for using parentheses is you have to do the equation in the parentheses first before you do any other equation first. You can also use PEMDAS.
Here, most appropriate answer would be: "<span>the title of the work, then the author's last name, and then the page number
In short, Your Answer would be Option C
Hope this helps!</span>