Reference: https://docs.snowflake.com/en/user-guide/data-sharing-provider.html

Explanation
According to the Snowflake documentation , 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);

Snowflake's documentation recommends producing the largest files possible for data loading, as larger files reduce the number of files to process and the overhead associated with handling many small files. This approach can maximize the load performance by leveraging Snowflake's ability to ingest large files efficiently1. References: [COF-C02] SnowPro Core Certification Exam Study Guide

A virtual warehouse in Snowflake is used to perform data processing tasks that require computational resources, such as queries that modify data or perform significant computation. Of the options provided:
* C. INSERT INTO TBL_EMPLOYEE(EMP_ID, EMP_NAME, EMP_SALARY, DEPT)
VALUES(1,'Adam',20000,'Finance'); This SQL statement performs a data modification operation (DML) by inserting a new record into the TBL_EMPLOYEE table, which requires computational resources provided by a virtual warehouse to execute.
References:
* Snowflake Documentation: Understanding Virtual Warehouses