Final answer:
The nurse practitioner and physician opening an office together and collaborating in client care is an example of a joint venture and the nurse being a general partner in the business.
Step-by-step explanation:
The scenario described is an example of a joint venture in the business industry. A joint venture is a business arrangement where two or more parties come together to collaborate on a specific project or venture. In this case, the nurse practitioner and physician have set up an office together, and the nurse is a general partner in the business.