Task: Class Definition Understanding (ontology: Legal/LKIF_Core_Ontology)

Which of the following definitions best describes 'Efficacy Interval'?

A. The period during which a normative fragment belongs to the normative system. The period of force for each fragment may change over time as a function of the modifications the document goes through.
B. This is the interval during which a normative document, or fragment, produces the consequences that the normative provision establishes.
C. The date when a modification is applied to the destination legislative document. The date can be instantaneous, in the future or in the past. Normally this date coincides with the date of efficacy of the text in which the modification takes place.
D. The period during which a normative fragment may be either operative or inoperative, by explicit provision of the document itself. The document is said to be in a period of operation, or enforceability or efficacy, when it may or must be applied or enforced.

Answer: The period during which a normative fragment may be either operative or inoperative, by explicit provision of the document itself. The document is said to be in a period of operation, or enforceability or efficacy, when it may or must be applied or enforced.