I think the correct answer from the choices listed above is option C. The correct format would be:
According to John Smith, the most common error in solving math questions "relates to the order of operations (9)."
For MLA format, quotations are enclosed within double quotation marks, the author is provided and the specific page. It should be noted that there should be no period after the parenthetical citation.
Answer:
#9 - aplomb
#10 - Memorable (maybe eloquent, but the the use of 'simple' in the description basically contradicts the idea of its eloquence)
#11 - nadir
#12 - gyrate
Explanation:
definitions:
Aplomb: self-confidence or assurance, poise. memorable is self-explanatory. nadir: the lowest point; point of greatest adversity or despair.
gyrate: To move in a spiral or spirallike course.