Which interaction is a human-computer interaction method in which symbols are used to represent commands or functions?

Which of the following is concerned with the storage and movement of materials?

a. Business Planning b. Silo Effect c. Project Management d. Material Planning e. Inventory and warehouse management (IWM)

Use the Gantt chart and activity list to determine which resource is used the least

Activity Resources Activity Resources R 5 M 1 H 1 K 4 G 5 J 3 F 2 P 1 B 2 S 2 T 4 W 3 A) Resource 1 B) Resource 2 C) Resource 4 D) Resource 5