I got 18 days before December 27 , 2020Which is not the correct answer ( X = -2.58 * 2.05 + 23)I would like to know where i went wrong

You have been asked manage a government's Disaster Recovery Project. You listed the activities and gathered the data as given in Table DRP. Table DRP Activity Immediate Predecessor E[T] (Days) A 5 B 6 C A 4 D A 3 E A 3 F E 4 G D & F 8 H B & C 12 - G & H 2 Part of the mandates of the project is for completion of the project by December 27, 2020. If you assume that the expected duration of the project is 23 days and the standard deviation of the critical path is 2.05 days, what is the latest date can this project begin to have at least a 95% chance of completion by December 27, assuming that work is done every day, from start to finish? Select one: O a. November 24 O b. December 1 O c. November 30 O d. November 27