What is a project charter?
a. specific factors that can limit options.
b. factors that are considered to be true, real, or certain without proof or demonstration.
c. quantifiable criteria that must be met for the project to be considered a success.
d. a document issued by the project initiator or sponsor that formally authorizes the existence of a project and provides the project manager with the authority to apply organizational resources to project activities.

Project charter is a document issued by the project initiator or sponsor that formally authorizes the existence of a project and provides the project manager with the authority to apply organizational resources to project activities.

Option D

Explanation:

The project statement refers the extension, targets, and members in a project. It gives a starter depiction of jobs and obligations, traces the project destinations, distinguishes the fundamental partners, and characterizes the authority of the project director.

It fills in as a source of perspective of expert for the eventual fate of the project. The terms of reference are typically part of the project charter. A project charter should:  

i think the answer is a, hope this is right, that would be my best guess.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !