Select all that are true of a database transaction log$.($Check all that are true.$)$

a$.$

Using a transaction log increases the processing overhead of a DBMS$.$

b$.$

When the DBMS executes transactions that modify the database, it also automatically updates the transaction log$.$

c$.$

The transaction log gives the ability to restore a corrupted database.

d$.$

Committed transactions in the transaction log can be rolled back by using the SQL ROLLBACK statement.