Answer:
The Contract made through the salesperson is binding on the pool company.
Explanation:
First what is a salesperson? It represents either an entity or an individual is sells or promotes the sales of goods or the offering of services. The key to this question is that a salesperson is usually employed to sell on behalf of a company, therefore, they have the contractual capacity to make deals binding on the company.
Since, the salesperson of Schrist signed the contract for $10,000 and it is not written that the approval of any other is required. The contract signed with Schrist by Jane and Joseph is binding and they can have their pool built for $10,0000.