Which of the following are reasons you would expect discrepancies between Campaign Manager Clicks and Campaign Manager Click-Through Sessions in Google Analytics? (select three)

Clicks and Impressions are directly imported from Campaign Manager and Sessions are reported when the user visits the site from a Campaign Manager Campaign.
It’s possible that the Campaign Manager Advertiser is driving traffic to multiple web properties.
You’ve enabled ‘Allow manual tagging (UTM values) to override auto-tagging(DCLID values) for Campaign Manager and Display & Video 360 reporting integration.’
Clicks and sessions are recorded differently by different systems.