3.1 Clarify the following using the method study activities or symbols in work study. (7) 3.1.1 The operator walks to the parts picking area. 3.1.2 Scan the Kanban to pick the parts from the rack. 3.1.3 The operator picks the parts from the rack. 3.1.4 The operator walks to the conveyor line. 3.1.5 The operator assembles the parts together. 3.1.6 The operator waits for a sub assembly parts from the other operator. 3.1.7 The operator checks the sub assembly parts. 3.2 There are a number of "rules" that a work study practitioner must observe in order to keep the respect of the supervisor. List them