How should the consultant recommend delivering a successful implementation?

Universal Containers (UC) wants to implement Service Cloud using Agile methodology .

How should the consultant recommend delivering a successful implementation?
A . set a cutoff date of 1.5 months before user acceptance testing for any change requests.
B . Generate continuous feedback from the project team, and adjust the requirements and deliverables accordingly.
C . Deliver the entire project simultaneously so as to present UC with a completed solution.
D . Schedule a meeting with the UC executives at the start of the project to generate all the requirements.

Answer: B