- Creation date
- Geo
- Campaign
- Change Type
The correct answers are: Campaign and Change Type
Explanation: If you’re scoped to an advertiser, the change history report lists all tracked changes that occurred in the advertiser and its entities during a specified date range. To reduce the amount of information shown, you can scope and filter the report to a specific account, campaign, ad group, or bid strategy. You can filter the change history report using any of the following attributes or a combination of attributes.
Account Id, Ad group, Ad group id, Bid Strategy, Bid strategy id, Campaign, Campaign id, Change type, Entity changed, Label, Label id, System, User email.
Read more here: https://support.google.com/searchads/answer/7027612