Final answer:
The correct answer is D. job description, which is a written statement detailing what a salesperson is expected to do in their role.
Step-by-step explanation:
A job description is a written statement of what a salesperson is expected to do. The correct answer to the student's question is D. job description. A job description outlines the primary duties, responsibilities, required qualifications, and reporting relationships of a particular job. In contrast to other options given, such as a requisition form, promissory note, executive summary, or specification sheet, a job description specifically details what is expected from the salesperson in their role within the company.