2. (5 points) One project consists of three sequential tasks A,B, and C. That is, for the project to complete, one must first start and finish task A, and then immediately start and finish task B, and then immediately start and finish task C. The time it takes to complete each of the three tasks is distributed as follows (in days) Task A: N(5,1), i.e., it is normally distributed with a mean of 5 and a variance of 1 . Task B: M(8,4), i.e., it is normally distributed with a mean of 8 and a variance of 4 . Task C: N(20,16), i.e., it is normally distributed with a mean of 20 and a variance of 16 . We also know that these three distributions are independent. What is the distribution of the total time to complete the project? You need to specify both the name of the distribution and the parameters. Please briefly explain your