Task: Instance Class Understanding (ontology: Sciences/Computer_Science)

Which of the following classes does 'XML' belong to as one valid explicit type? Context: XML is a format standard of a digital entity that is conformant with the W3C Extensible Markup Language Recommendation.(http://www.w3.org/XML/)

A. plan specification
B. Obsolete
C. data format specification
D. qPCR data

Answer: data format specification