Final answer:
Triangulating as a means of rhetorical criticism focuses on evaluating multiple perspectives to provide a comprehensive critique of a piece of rhetoric, considering cultural context and audience awareness.
Step-by-step explanation:
The role of triangulating as a means of rhetorical criticism is b) Evaluating multiple perspectives. Triangulation involves analyzing a piece of rhetoric from different angles and considering various interpretations to gain a deeper understanding of the message and its effectiveness. Through the triangulation process, critics examine the appeals to ethos, logos, and pathos, but more importantly, they look at how these appeals intersect with the cultural context and how audiences are likely to interpret them based on their own experiences and cultural background. This evaluative approach to criticism goes beyond just identifying rhetorical appeals by deeply considering the audience awareness and the broader communicative situation in which the rhetoric occurs. The goal is to provide a comprehensive critique that acknowledges the complexity of communication and its impact on different groups within the audience.