What are the campaign and image limits with Google Import for Audience Campaigns?

Q: What are the campaign and image limits with Google Import for Audience Campaigns?

A) 5,000​ campaigns and 1,000 images per import campaign
B) 30,000 campaigns and 4,000 images per campaign
C) 10,000 campaigns and 2,000 images per import operation
D) 20,000​ campaigns and 3,000 images per import operation

E) None of the above

Correct Answer is D) 20,000​ campaigns and 3,000 images per import operation.