Answer:
I need to leave for school right now, however, I don't have all of my school supplies gathered
The sentence in option (D) is correctly punctuated.
Explanation:
Punctuations are very important in a passage. They make a passage meaningful and easy to understand.
Option D uses comma at correct places, before and after, “however”. Other sentences are not correct grammatically. Use of ‘but’ and ‘although’ is not correct in option B and C respectively. In sentence A, semi colon should not be used before ‘because’. So, these options A, B and C are incorrect, and the correct answer is D.