Final answer:
The correct answer to the question is 'Run Query,' which is found in the Results group on the Query Tools Design tab.
Step-by-step explanation:
A query can be run at any time during the creation of the query by clicking the Run button in the Results group on the Query Tools Design tab. The correct option from the given choices would be 1) Run Query. This functionality allows you to execute the query and view the results to ensure that it is retrieving the correct information from the database. In similar fashion to simulations or document editing, the Run feature is an integral part of query designing, allowing for immediate testing and validation of the SQL statements composed within the query environment.