(A) YouTube only.
(B) The original rightsholder.
(C) The user who uploaded the claimed content.
(D) No one – invalid claims don’t carry any consequences.
The original rightsholder is responsible for avoiding invalid claims on YouTube.
This question is a part of the Control your content through claims lesson from the Claims and policies unit. You can get answers to all the questions asked in this unit on our Claims and policies Answers page.