Which Definition Describes Column Profiling

Multiple Choice

Which definition describes Column Profiling?

A) Colum profiling automatically recognizes all functional and other dependencies in all tables, in particular the primary keys
B) Column profiling is the process of looking at every distinct value to determine the true minimum, maximum, data type, pattern and other important information about each attribute
C) Column profiling identifies the attributes for referential integrity
D) Column profiling is the process of creating a normalized schema for your target system