Robert is asking for assistance creating an important project document that will outline all the factors of a project that will determine its high$-$level requirements, assumptions, high$-$level risks, and high$-$level purpose description. Once this document is completed, Robert will ask the project sponsor for their signature. What document is Robert asking for assistance with?

A $$ Business case

B $$ Project charter

C $$ Needs assessment

D

Feasibility statement