For each of the statements below (I, II and III), indicate whether the statement applies to a) a scalar processor, b) a superscalar processor or c) a multi-threaded processor.
Select only one choice (a, b or c) in each case.
I. Fetches and issues at most one instruction every machine cycle.
II. Requires multiple register sets for each CPU.
III. Fetches and issues multiple instructions every machine cycle.