Before migrating to SAP HANA, which Code Inspector check do you have to consider to avoid functional regressions?

Before migrating to SAP HANA, which Code Inspector check do you have to consider to avoid functional regressions?
A . Standard Web Dynpro checks
B . Search for DB operations across modularization units
C . SELECT statements that bypass the table buffer
D . Use of the ADBC interface

Answer: D