The correct answer to the question above is the (c.) anyone's completes the sentence. Miranda says that the outcome of the race is anyone's guess. Since Miranda is referring to anyone that is involve (not particularly in it) in the race, it means should refer anyone to anyone's.
Answer choices 4 and 3 are correct. A decrease in price attracts more customers, therefore an increase in the demand for that item. An increase in price will mkae customers less likely to buy the item, therefore a decrease in demand.
