Which sentence has the CORRECT WORD ORDER? (1)Thoughtlessly destroying our environment, the book states that if we continue at the present pace, the extinction of many species is inevitable. (2)If we continue at the present pace, the book states that extinction of many species thoughtlessly destroying our environment is inevitable (3)At the present pace, the book states that thoughtlessly destroying our environment is inevitable if we continue the extinction of many species. (4)The book states that the extinction of many species is inevitable if we continue thoughtlessly destroying our environment at the present pace.