Which of the following statement is not true? (A) a. Lack of the idea is the main reason why division of labor was not appeared in the history of operations management until 1776. b. Interchangeable part is a necessary step to enable mass production. c. There is a continuum from goods to services. d. Quality revolution is an important chapter in operations management history Given the following information, please answer question 2 to question 4 . Activity Immediate Predecessors Completion Time (Weeks) A N/A 4 B A 5 C B 2 D B 4 E B 3 F E 3 G A 1 H F 6 I C,D,G 5 J A 12 2. What are the earliest start and the earliest finish of the activity I? (C) a. 11,16 b. 5,10 c. 13,18 d. 16,21