Question: What will be displayed when the following code is executed? DECLARE varA NUMBER : = 1 2 ; BEGIN DECLARE varB NUMBER : = 8

What will be displayed when the following code is executed?
DECLARE
varA NUMBER :=12;
BEGIN
DECLARE
varB NUMBER :=8;
BEGIN
varA := varA + varB;
END;
DBMS_OUTPUT.PUT_LINE(varB);
END;
8
VarB
Nothing, the block will fail with an error
20
12

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