All projects go through a predictable pattern of activity, referred to as a project life cycle. The major types of project life cycle models have some things in common. Which of these is a characteristic that all project life cycles have in common?

a$.$ They all have four phases: Selecting & Initiating, Planning, Executing, and Closing & Realizing.

b$.$ They are all predictive and plan$-$driven.

c$.$ They all involve a series of phases that need to be completed and approved before proceeding to the next phase.

d$.$ They are all based on the Project Management Institute's $5$ process groups

c$.$ Time

d$.$ Budget

a$.$ The background statement is the project purpose or justification, and answers the question "why?"

b$.$ The background statement represents the knowledge acquired by the project team throughout the project planning and execution.

c$.$ The background statement provides more detail to understand the rationale and purpose behind the Scope Overview and the Business Case statements.

d$.$ The background statement establishes what team operating rules or principles will be used.

a$.$ Selecting and initiating

b$.$ Initiating and planning

c$.$ Planning and executing

d$.$ Executing and closing

a$.$ A short document that grants the project manager the right to continue working on the more detailed planning phase of a project

b$.$ The project purpose or justification statement, that answers the question "why" and helps all parties understand the purpose of the project

c$.$ A high$-$level description of what needs to be accomplished and how it will be done

d$.$ A document that represents the knowledge acquired and captured by the team throughout project planning and executio

c$.$ Value working software more than documentation

d$.$ Value response to change over following a plan

d$.$ Creates a product or service