Sarah is the project manager of the NuoTech project, a new product release project, and she just has the project plan drafted. This morning she received a notice from the Patent Office that their request to patent their new technology for this product is pending approval and will need six months to process instead of 4 months as she estimated earlier. Now Sarah needs to adjust her project plan to reflect the change of this dependency. This dependency is a(an) internal dependency. technical dependency. external dependency. discretionary dependency