Question

What type of clause is the following statement?
Who the man is has us confused.

1.Adjective clause
2.Adverb clause
3.Noun clause
4.None of the above

Answer 1

Probably none of the above.

Answer 2

A poorly phrased question, I suspect. It's asking what the first part of the statement is, i.e. "Who the man is ..." That clause serves as the subject and acts as a noun.

Answer 3

Noun clause.