Choose the option A, B, C or D which indicates the sentences which has best combine the original ones.Câu hỏi A car hit the fence of my garden. I was cleaning the swimming pool. A. While a car hit the fence I was cleaning the swimming pool. B. A car hit the fence and I was cleaning the swimming pool. C. I was cleaning the swimming pool when a car hit the fence. D. I was cleaning the swimming pool then a car hit the fence.