2 pts Which of the following is an example of time series problem? 1. Estimating number of hotel rooms booking in next 6 months. 2. Estimating the total sales in next 3 years of an insurance company. 3. Estimating the number of calls for the next one week. (A) Only 3 (B) 1 and 2 (C) 2 and 3 (D) 1 and 3 (E) 1,2 and 3 OE OC O B DD CA