Which exception raised in case of failure of attribute reference or assignment?AttributeErrorEOFErrorImportErrorAssertionError

What type of error occurs when a variable is referenced before it has been defined?

In general there are 2 types of errors namely ?ASys Error and EOFErrorBSyntax Error & Logical Error (Exception)CImportError and AttributeErrorDOverflowError and ZeroDivisionError

An error is said to be systematic if there is an assignable cause behind it.a.Trueb.False

What is an error that occurs during the execution of code?1 pointError messagesExceptionException handlingFinally

The values appearing in given attributes of any tuple in the referencing relation must likewise occur in specified attributes of at least one tuple in the referenced relation, according to _____________________ integrity constraint.ReferentialPrimaryReferencingSpecific