What are two possible causes for this error to occur?

A MySQL replication slave is set up as follows: User all InnoDB tables Receives
ROW-based binary logs Has the read-only option The replication slave has been found in
an error state. You check the MySQL error log file and find the following entries: 2013-08-27
13:55:44 9056 [ERROR] Slave SQL: Could not execute Write_rows event on table test.tl;
Duplicate entry ‘3’ for key’PRIMARY’ , Error_code: 1062; handler error
HA_ERR_FOUND_DUPP_KEY; the event’s master log 56_master-bin.000003,
end_log_pas 653, Error_code: 1062 2013-08-27 13:55:44 9056 [Warning] Salve: Duplicate
entry ‘3’ for key ‘PRIMARY’ Error_code: 1062 2013-08-27 13:55:44 9056 [ERROR] Error

running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread
with “SLAVE START”, We stopped at log ‘56_masterbin. 000003’ position 496 What are two
possible causes for this error to occur?

A.
The slave was created with mysqldump –u root –p – skip-lock-table—all-databases >
/data/data.sql

B.
The slave user does have INSERT, UPDATE, or DELETE permission and cannot
execute the write_rows function.

C.
For tables with UNIQUE keys, statement-based replication must be used maintain
integrity.

D.
The root user on the slave has executed FLUSH LOGS, causing the relay-log to
doublewrite.

E.
The applications have the SUPER privilege, which allows them to update rows.