An analyst working to aggregate data in databases uses the Structured Query Language (SQL) command LEFT JOIN for the first table 'customer_name' and the second table 'sales_rep' by matching the 'customer_id' common to both tables. Which type of output will result from this command?

This option incorrectly focuses on 'customer_id', which is not the output of a LEFT JOIN between the 'customer_name' and 'sales_rep' tables. While 'customer_id' is a common field used for matching, the output will specifically include the names of customers and their respective sales representatives rather than just the IDs.

This choice misrepresents the output of the LEFT JOIN. The focus here is on the 'sales_rep', which is not the primary table being queried. The LEFT JOIN ensures that all customer names are shown, even if some may not have corresponding sales representatives, making this option inaccurate.

This option introduces 'sales_id', which is not part of the tables specified in the question. The LEFT JOIN does not relate 'sales_id' to 'customer_name' and, therefore, does not reflect the output of the command. The focus remains on the relationship between customers and their sales representatives, not sales IDs.