Observe the given DTD: <?XML version ="1.0"?> <!DOCTYPE SITES[ <!ELEMENT SITES…

Correct statement: Element ADDRESS and UTILITY both are to be present in specified order.

• Why this is correct:

• The SITE element is declared with the content model (ADDRESS UTILITY), which requires an ADDRESS element followed immediately by a UTILITY element inside SITE.

• ADDRESS is declared as (#PCDATA), so ADDRESS must contain text content (it is not an empty element).

• The snippet references UTILITY in the SITE content model but does not show a declaration for UTILITY; nevertheless, the content model requires the UTILITY element to appear in that position.

Additional notes about the provided DTD snippet:

• The DOCTYPE names SITES as the root element, so the document root is SITES (not SITE).

• The declaration <!ELEMENT SITES (SITES +)> appears malformed or recursive; likely the intended declaration was <!ELEMENT SITES (SITE+)> to indicate one or more SITE elements.

• A complete DTD should include a declaration for UTILITY; its absence in the snippet is an omission.

Why the other statements are incorrect:

• The claim that ADDRESS and UTILITY are empty is wrong because ADDRESS is declared as containing text (#PCDATA) and UTILITY has no declaration shown.

• The claim that SITE is the root is wrong because the DOCTYPE lists SITES as the root element.

• The claim that SITE is optional is incorrect; SITE is part of the intended SITES structure and not declared optional in the SITE content model.