Which organization has published more than 300 Web standards, and encourages manufacturers to follow these standards, many of which define levels of conformance? This task contains the radio buttons and checkboxes for options. The shortcut keys to perform this task are A to H and alt+1 to alt+9.
A) World Wide Web Consortium (W3C)
B) Institute of Electrical and Electronics Engineers (IEEE)
C) Internet Engineering Task Force (IETF)
D) International Organization for Standardization (ISO)