In a Work$-$Based$-$Structure...

Question $4$ options:

a$)$

deliverables are viewed as single task categories organized by their work complexity

b$)$

tasks are structured by specific task activity based on their specific process

c$)$

Tasks are grouped from the general task category down to the specific task and then to the task process

d$)$

All of the selections are correct representations of work based structure $($WBS$)$ organization