Select the Answer That Corrects the Comma Splice or Run-On

Multiple Choice

Select the answer that corrects the comma splice or run-on sentence.
-We worked on the chemistry project last night we hope to finish it soon.

A) We worked on the chemistry project last night; and we hope to finish it soon.
B) We worked on the chemistry project last night and, we hope to finish it soon.
C) We worked on the chemistry project last night; we hope to finish it soon.
D) We worked on the chemistry project last night and we hope to finish it soon.