Read the paragraph below and answer the questions that follow.
(1) You are sitting in a restaurant quietly having a meal when suddenly a man nearby starts choking on a piece of food lodged in his throat. (2) By using the Heimlich maneuver, you may be able to save this person's life. (3) Your two hands are all you need to perform this lifesaving technique. (4) First, position yourself behind the choking person. (5) Then wrap your arms around the person's midsection, being careful not to apply any pressure to the chest or stomach. (6) Once your arms are around the victim, clench one hand into a fist and cup this fist in the other hand. (7) Now turn the fist so that the clenched thumb points toward the spot between the choker's navel and midsection. (8) Finally, thrust inward at this spot using a quick, sharp motion. (9) If this motion does not dislodge the food, repeat it until the victim can breathe freely.
Which of the following is not a transitional expression in the paragraph above?

A) now
B) finally
C) if
D) then