THE STUDENT NEXT TO ME KEPT CHEWING GUM. THAT BOTHERED ME A LOT. A...

1. The student next to me kept chewing gum. That bothered me a lot. A. The student next to me kept chewing gum, which bothered me a lot. B. The student next to me kept chewing gum bothered me a lot. C. The student next to me kept chewing gum, that bothered me a lot. D. The student next to me kept chewing gum, which bothering me a lot.