Final answer:
Personal observation is the act of going to a location to watch activities as they occur, often used for qualitative assessments in different fields including business and ethnography.
Step-by-step explanation:
The correct answer to the question is B. Personal observation. It involves going to the specific location where activities occur and watching what happens in real-time. This method is frequently used in various fields, including ethnography, to gather qualitative data. For instance, in an educational setting, personal observation allows evaluators to witness the implementation of a curriculum and assess its effectiveness based on active observation rather than relying solely on surveys or test scores. In the field of business, personal observation provides insights into workplace processes, employee behavior, and customer interactions, which can inform management decisions and strategies for improvement.