When the prime lending rates went up in 1987, economists determined they would cause interest rates to rise and then decline over the ensuing five-year period.
　　(A) they would cause interest rates to rise and then decline
　　(B) they would mean that interest rates would rise and then decline
　　(C) that they will cause interest rates to rise and then decline
　　(D) that the increase would cause interest rates to rise and then decline
　　(E) that the increase would cause interest rates' rising and subsequent declining
　　(A) they would cause interest rates to rise and then decline
　　(B) they would mean that interest rates would rise and then decline
　　(C) that they will cause interest rates to rise and then decline
　　(D) that the increase would cause interest rates to rise and then decline
　　(E) that the increase would cause interest rates' rising and subsequent declining
