In the Context of Componential Design in HCI, Which of the Following

Multiple Choice

In the context of componential design in HCI, which of the following statements about "task" and "function" is appropriate?

A) All the tasks supported by a system constitute the system's functionality;
B) A task to be done should be chosen based on whether the task matches a system's functions;
C) Tasks are supported by a system's functions;
D) "Task" refers to the system designer's description of what a system component does.
E) "Function" refers to the description of a task as user sees it.