Answer:
A run-on sentence.
Explanation:
A sentence fragment is a group of words that looks like a sentence, but actually isn't a complete sentence. For example, 'I like cheeseburgers' is an independent clause. Sentence fragments never have independent clauses, but instead are dependent clauses or phrases. So, it would not worked.
A run-on sentence occurs when two or more independent clauses (also known as complete sentences) are connected improperly.
A grammatically correct sentence is when a sentence is grammatically correct.
I said this is a run on sentence, because there is no comma or any type of puntuation between spaghetti and I.