A run-on sentence is BEST defined as what?

A run-on sentence is best defined as independent clauses incorrectly joined together. This means that two or more complete thoughts, which can stand alone as sentences, are not properly connected using appropriate punctuation or conjunctions. For example, if you write "I love to read I often go to the library," this is a run-on because the two independent clauses are simply placed next to each other without a coordinating conjunction (like "and") or appropriate punctuation (like a period or semicolon) to separate them.

Recognizing that a run-on sentence consists specifically of these incorrectly joined independent clauses is crucial for understanding how to construct clear and grammatically correct sentences. This clarification helps in developing better writing skills, ensuring ideas are expressed distinctly and effectively. Other options do not accurately capture the essence of a run-on sentence. For instance, a long sentence that goes on and on does not necessarily constitute a run-on if it uses proper punctuation and structure. Additionally, sentences made of dependent clauses do not align with the definition of run-on sentences, as dependent clauses cannot stand alone as complete thoughts.