You are working on a project plan in Microsoft Office Project Standard 2007. Each resource in the resource pool has one primary skill that is used to allocate the resource to appropriate tasks. These primary skills fall into three categories with five skill levels as sub-categories. You need to be able to easily search for resources with specific skills. What should you do first?

A.
Allocate a skill to each task by using a custom task field.

B.
Allocate a skill to each task by using a custom task outline code.

C.
Allocate a skill to each resource by using a custom resource field.

D.
Allocate a skill to each resource by using a custom resource outline code.