You have a table named SampleTable with 4 billion rows in Azure Data Factory. SampleTable contains data from the last 42 months. At the end of every month, the oldest month of data is removed based on a column named DateTime. You need to minimize how long it takes to remove the oldest month of data. What do you do?
A: You specify DateTime as the hash distribution column
B: You implement a columnstore index on the DateTime column
C: You implement round robin for table distribution