The monthly sales for Telco Batteries, Inc., were as follows: Month Sales January 20 February 21 March 15 April 14 May 13 June 16 | July | 17| August 18 September 20 October 20 November 21 | December 23 Forecast January sales using each of the following: (1) Naive method. (2) A 3-month moving average. (3) A 6-month weighted average using 0.1, 0.1, 0.1, 0.2, 0.2 and 0.3, with the heaviest weights applied to the most recent months. (4) Exponential smoothing using an and a September forecast of 18. (5) A trend projection. With the data given, which method would allow you to forecast next March's sales?