When should the term 'substituto' be used in the identification of a signatory? The term 'substituto' should be used to refer to someone who is de...

When should the term 'substituto' be used in the identification of a signatory?

The term 'substituto' should be used to refer to someone who is designated to exercise the duties of a vacant public position or in case of legal or regulatory impediments of the holder.
The term 'substituto' should be used to refer to someone who temporarily occupies a public position during a vacancy.
The term 'substituto' should not be used in the identification of a signatory.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) II and III are correct.