A$($n$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ breaks down a project into its major components, which are further divided into subcomponents, activities, and, finally, individual tasks.

a$)$ work breakdown structure $($WBS$)$

b$)$ scope statement

c$)$ responsibility assignment matrix $($RAM$)$

d$)$ organizational breakdown structure $($OBS$)$