Final answer:
Identifying possible risks involves using a variety of information sources; customers and stakeholders, expert knowledge, and root cause analysis are all instrumental. Historical data from past projects is particularly valuable, although a multidimensional approach is best for comprehensive risk assessment.
Step-by-step explanation:
When identifying possible risks for a project, it is essential to consider various sources of information. Each source provides different insights which contribute to a comprehensive risk assessment. Gathering information from customers and other stakeholders can highlight potential external risks and expectations that may impact the project. Finding expert information, which could be sourced in person or through literature, offers informed perspectives based on knowledge and experience in specific areas relevant to the project. Furthermore, doing a root cause analysis helps in uncovering underlying issues that could pose risks. While all the options provided (A-D) can be useful in different contexts, historical information from past projects (Option B) often serves as a particularly valuable resource, giving teams a practical baseline upon which to predict and prepare for potential risks. It's important to note that no single source should be used in isolation, and a multidimensional approach to risk identification is generally the most robust strategy.