Arnold is the chief executive officer of the Beta Corporation. Arnold's responsibilities comprise decisions on product development, marketing and other significant business directions. Arnold is subject to the approval as well as oversight of Beta's board of directors. Carol is a Beta manager whose duties comprise the firm s day-to-day hiring, firing, purchasing and selling. Dave is a Beta salesperson whose daily activities are controlled by Carol. Erin writes technical manuals for Beta products as per to Arnold s instructions as well as has no dealings with Beta customers or suppliers. Fred edits the manuals on a contract-per-manual basis as well as is not otherwise subject to Beta s control. Who is a principal? Who is or are the agent(s)? Who is or are the employee(s)? Who is or are the independent contractor(s)? Explain