Where can you view the documents used as part of your conceptual index training set?

The choice of Field Tree - Conceptual Index as the correct answer is appropriate because this is the specific area within the RelativityOne platform designed for managing and examining the components involved in creating and training a conceptual index. In this context, the Field Tree allows users to access and understand various aspects of the index, including the training documents which are crucial for building a model that can categorize and retrieve documents based on their conceptual similarities.

The Field Tree presents a structured way to visualize how fields relate to the training set that informs the index, enabling deeper insights into the training documents selected and how they contribute to the overall model. This means that users can effectively manage and review the training set while building or fine-tuning their conceptual indexing capabilities.

Accessing the training documents through other areas, such as the Review Center, Document List, or User Settings, does not specifically provide the detailed context and functionality designed for conceptual index training, making those options less suitable for this particular query.