Fuzhou Spa is considering adding one of two services, seaweed body wraps or hot stone massages. The seaweed body wrap will result in additional revenues of $500 and costs of $100. The hot stone massages will result in additional revenues of $500 and costs of $300. The relevant (s)pieces of information in this decision is (are) Select one: the additional costs all the information is relevant none of the information is relevant the additional revenues