Question

Identify the subordinate clause in the following sentence:
No one knows who he is.

• A. No one knows
• B. who he is
• C. he is
• D. one knows

Answer 1

Answer: (B)

who he is

A clause is a part of a larger sentence containing a subject and a predicate of its own.
A Principal Clause is an independent clause which can exist even without a subordinate clause. A Subordinate Clause is called a dependent clause because it cannot exist without the help of the principal clause. It begins with a subordinating conjunction.
Option B is correct because 'who he is' is the subordinate clause beginning with the subordinating conjunction 'who'. It depends on the principal clause for its existence.
Option A is incorrect because 'No one knows' is the principal clause.
Option C is incorrect because it doesn't make complete sense.
Option D is incorrect because it is a phrase and not a clause.