Which answer best describes Procurement Management$*$

a$).$ an overarching function that coordinates the work of all other knowledge areas

b$).$ consists of preparing and managing the budget for the project

c$).$ define, gain written agreement for, and manage all the work required to complete the project successfully

d$).$ ensures that the project will satisfy the stated or implied needs for which it was undertaken

identifying relevant interested parties to the project, understanding their needs and expectations, and engaging them appropriately throughout the project

e$).$ includes estimating how long it will take to complete the work, developing an acceptable project schedule given cost$-$effective use of available resources, and ensuring timely completion of the project

f$).$ includes identifying, analyzing, and responding to any effect of uncertainty related to the project objectives

g$).$ involves acquiring goods and services for a project from outside the performing organization

h$).$ involves generating, collecting, disseminating, and storing project information

i$).$ is concerned with making effective use of the people and physical resources needed for the project