Final answer:
A run-on sentence is a sentence that contains two or more main clauses without proper punctuation or conjunctions to connect them. Out of the given options, the correct answer is B: Elijah plan to visit his friend for the weekend, he put his toothbrush in his favorite game in his backpack.
Step-by-step explanation:
A run-on sentence is a sentence that contains two or more main clauses without proper punctuation or conjunctions to connect them. It is important to recognize and correct run-on sentences to ensure clarity and proper grammar in writing.
Out of the given options, the correct answer is Elijah plan to visit his friend for the weekend, he put his toothbrush in his favorite game in his backpack. This sentence is a run-on because it contains two independent clauses ('Elijah plan to visit his friend for the weekend' and 'he put his toothbrush in his favorite game in his backpack') without any punctuation or conjunction to separate them.
In order to fix the run-on sentence, a comma or a coordinating conjunction like 'and' or 'but' can be used to signal the relationship between the two clauses. For example, the corrected sentence could be: 'Elijah planned to visit his friend for the weekend, and he put his toothbrush and his favorite game in his backpack.'