When will the language complier return both a warning and an error message?

A.
when you declare SQLCODE (anywhere in your program) but you do not declare SQLSTAE within a
Declare Section

B.
when you do not declare SQLCODE anywhere in your program and you do not declare SQLSTAE
within a Declare Section

C.
when you declare SQLODE outside of a Declare Section and SQLSTATE within a Declare Section

D.
If you declare both SQLCODE and SQLSTATE with a Declare Section