When Dropping a Primary Key Column from a Table,which of the Following

Multiple Choice

When dropping a primary key column from a table,which of the following steps is included in the process? (The order of the steps listed below is not relevant,only the steps themselves. )

A) Drop all constraints from the table
B) Drop the foreign keys from the table
C) Drop the foreign keys in other tables based on the primary key column
D) Drop the primary key(s) of any table(s) to which this one is related