Everyone in the bank - including the manager and the tellers, ran to the door when the fire alarm rang.

The correct response involves the use of a punctuation mark that clearly indicates the relationship between the parts of the sentence. The phrase "tellers, ran" separates the subject "the tellers" and the action "ran" appropriately with a comma, which maintains the flow of the sentence without creating confusion.

The other option that correctly connects the subject to the verb without altering the meaning or function is the use of a comma, which is standard in written English for indicating a pause before the verb. This punctuation helps clarify that everyone is running in response to the fire alarm without implying any additional or incorrect grammatical structure.

The choice that uses a colon could suggest that what follows expands on or explains what came before, which is not the intention here. The option that includes "had run" changes the tense inaccurately, implying a past perfect tense that does not fit as the events are happening simultaneously. Lastly, a dash generally indicates an abrupt break or change in thought, which would misrepresent the original sentence's intent. Therefore, using a comma in the correct structure allows for smooth readability and accurate representation of the actions taking place.