【单选题】

These inspection features are mandatory and cannot be changed or deleted without the approval of the FAA Oversight Office that is responsible for the airplane model Type CertificatE.

A、If there is no approval of the FAA Oversight Office that manages the airplane model Type Certificate, anyone cannot change or delete these inspection features that are compulsivE.
B、These inspection features can be changed or deleted if they don't get approval of the FAA Oversight Office that is responsible for the airplane model Type Certificate because they are mandatory.
C、If changing or deleting of these inspection features is approved by the FAA Oversight Office that manages the airplane model Type Certificate, they are mandatory.