Which sentence correctly follows the rules for MLA in-text citations for a quote from page 9 of John Smith's book, Solving Equations?
AAccording to John Smith, the most common error in solving math questions "relates to the order of operations" (9).
BAccording to John Smith, the most common error in solving math questions "relates to the order of operations" (9.)
CAccording to John Smith, the most common error in solving math questions "relates to the order of operations (9)."
DAccording to John Smith, the most common error in solving math questions "relates to the order of operations (9.)"
AAccording to John Smith, the most common error in solving math questions "relates to the order of operations" (9).
BAccording to John Smith, the most common error in solving math questions "relates to the order of operations" (9.)
CAccording to John Smith, the most common error in solving math questions "relates to the order of operations (9)."
DAccording to John Smith, the most common error in solving math questions "relates to the order of operations (9.)"