You plan to use structured data files (SDFs) to update details of a large campaign you’re working on. You try to upload everything into Display & Video 360 but are getting an error. Which setting will cause an error?

An SDF for modifying inventory sources.
An SDF with rows for both editing and removing line items.
A single SDF with both line item and insertion order rows.
An SDF with 100 line items in a single file.