A developer maps the abstract entity class Account with concrete entity suB. classes
CreditCardAccount and SavingsAccount using the single table per class hierarchy strategy. Which
two statements are true? (Choose two.)
A.
Instances of CreditCardAccount and SavingsAccount are stored in the same table.
B.
All columns that correspond to fields declared in Account must be defined as nullable in the
database.
C.
The fields declared in Account are stored in a different table than the ones declared in
CreditCardAccount and SavingsAccount.
D.
All columns that correspond to fields declared in CreditCardAccount or SavingsAccount must
be defined as nullable in the database.