Allie is working on the development of a web browser and wants to make sure that the browser correctly implements the Hypertext Markup Language (HTML) standard. What organization's documentation should she turn to for the authoritative source of information?
a) International Electrotechnical Commission (IEC)
b) National Institute of Standards and Technology (NIST)
c) World Wide Web Consortium (W3C)
d) Internet Engineering Task Force (IETF)