Question: 6 - You have received a task to prepare a PL / SQL function to check if aparticular user _ id is already registered. It

6-You have received a task to prepare a PL/SQL function to check if aparticular user_id is already registered. It will be called from an SQLstatement. Which RETURN statements can be used to indicate that auser is registered?
A.RETURN TRUERE
B.TURN 'TRUE'
C.RETURN O
D.RETURN 1
Choose the correct answer:

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