Final answer:
Members to members (C) are not bound to one another by the constitution in the context of company law. The company constitution and laws bind members to the company and vice versa, as well as the company to third parties, but not members directly to other members.
Step-by-step explanation:
In the context of company law, the parties not bound to one another by the constitution are Members to members (C). The company's constitution and corporate law typically bind members to the company (A), and the company to its members (B). Additionally, the company may be bound to third parties (D) through contracts and legal obligations. However, members are generally not directly bound to each other by the constitution, as their relationship is intermediated by the company itself.
When it comes to the structure of a private company, it can operate as a sole proprietorship, partnership, or corporation without publicly issued stock. The day-to-day operators are often the owners, and in some cases, private companies can be large corporations with substantial annual sales. Nevertheless, the nature of the obligations that members have to one another will depend on the specific legal structure chosen and the agreements made between the members.