A well-clustered table in Snowflake means that the data is organized in such a way that related data points are stored close to each other within the micro-partitions. This optimizes query performance by reducing the amount of scanned data. The diagram indicated by option C shows a well-clustered table, as it likely represents a more evenly distributed range of values across the micro-partitions1.
References = Snowflake Micro-partitions & Table Clustering

In the Admin area of Snowsight, users can analyze query performance, manage Snowflake warehouses, set up and view details about resource monitors, manage users and roles, and administer Snowflake accounts in their organization2.

stage name=>'bronzestage1));
Explanation:
According to the Snowflake documentation1, a directory table stores a catalog of staged files in cloud storage and can be queried to retrieve the Snowflake-hosted file URL to each file in the stage. A file URL has the following format:
https://<account_identifier>/api/files/<db_name>.<schema_name>.<stage_name>/<relative_path> Based on this information, I think the query that contains a Snowflake hosted file URL in a directory table for a stage named bronzestage is B. select * from directory(@bronzestage);

Explanation
https://docs.snowflake.com/en/user-guide/ecosystem-analytics.html

The command USE WAREHOUSE <<warehouse name>>; is used to set the virtual warehouse for the current session in Snowflake. This command specifies which virtual warehouse to use for executing queries in that session1.