Nicole is working on migrating on-premises SQL Server databases to Azure SQL data warehouse(Synapse dedicated SQL pools) tables. The tables of the dedicated SQL pools of Synapse Analytics require partition. She’s designing SQL table partitions for this data migration to the Azure Synapse. The partition of the tables already contains the data, and she’s looking for the most efficient method to split the partitions in the dedicated SQL pool tables. 
What T-SQL statement can she use for splitting partitions that contain data?

Answer options:

A.CTAS
B.CETAS
C.OPENROWSET
D.Clustered Columnstore Indexes

Correct Answer: A 

https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-partition?context=/azure/synapse-analytics/context/context