Identify the kind of the underlined clause in the following sentence:…

The correct answer is Option (4) → Principal clause

“The school sports day will be moved to Saturday” makes sense alone. “Unless the rain stops by noon” does not, so that part is the subordinate clause.

Clause	What it does	Example
(1) Noun clause	works as the subject or object of a verb	I know that you are tired.
(2) Adjective clause	describes a noun that comes just before it	The bag that you lent me is torn.
(3) Adverb clause	tells when, why or on what condition something happens, and it cannot stand alone	We will go out if the sun comes out.
(4) Principal clause (answer)	the main clause: it has its own subject and verb and makes full sense on its own; the other clauses depend on it	The shops stayed open although it was Sunday.