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Which sentence contains the correct pronoun reference?
a. If you want to have fun on the roller coaster, a person has to remember to keep all body parts inside the roller coaster.
b. If you want to have fun on the roller coaster, they have to remember to keep all body parts inside the rollercoaster.
c. If you want to have fun on the roller coaster, you have to remember to keep all body parts inside the roller coaster.
d. If you want to have fun on the roller coaster, he or she has to keep all body parts inside the roller coaster.
c. If you want to have fun on the roller coaster, you have to remember to keep all body parts inside the roller coaster.