answer the below 2 multiple choice questions ?

Question 25 (Mandatory) (5 points) Saved In the below precedence diagram, what is the early start of Activity B? (note: ES, EF are shown above each node and LS, LF are shown below each node) 2 3 0, 10 5, 12 A ES, EF B 8. 7 10 0,10 LS, LF 5, 12 a) 10 b) 8 c) 5 d) 2. Question 26 (Mandatory) (5 points) Saved In the below precedence diagram, what is the late start of Activity B? (note: ES, EF are shown above each node and LS, LF are shown below each node) 2 3 0, 10 ES, EF B A 10 5, 12 7 5, 12 8 0, 10 LS, LF a) O b) 2 C) 5 od) 10