Use the properties of limits to help decide whether each limit exists. If a limit exists, find its value. 3x+ 2x lim x-+00 4x - 2x + 1 Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. 3x + 2x lim x-+00 4x - 2x + 1 (Simplify your answer. Type an integer or a fraction.) O B. The limit does not exist and is neither co nor - co