What should the consultant suggest to minimise the impact of Marketing Cloud Connect on daily API limits?

A customer executes a large number of sends via Marketing Cloud Connect and is concerned about API Limits.

What should the consultant suggest to minimise the impact of Marketing Cloud Connect on daily API limits? Choose 2
A . Filter target audiences based on mapped profile attributes to reduce Bulk API calls
B . Upgrade the Marketing Cloud Account to ConnectedApp Authentification
C . Use Data Stream to sync object data into a Data Extension in the Marketing Cloud
D . Share Sales Cloud user licenses across Marketing Cloud users

Answer: A,D