Answer:
General public
Step-by-step explanation:
One of the aim of advertisement is to reach out to as many audience as possible in order to increase the popularity of a particular product and and subsequently win more customers. The larger the horizon of the audience reached , the better.
Going by the size of the spectators (up to 300 million)of the New york City Marathon , it is apparently the general public , the aim of Cape Sky being a sponsor of the event is to reach out to the General public