<span>Among the choices provided the subordinate clause is "although the disc was intercepted". This is because the subordinate clause is usually introduced by a subordinate conjunction like "although". It typically dependent on the main clause. Other subordinate conjunctions are after, because, before, and if.</span>
<span>Subordinate clause is typically introduced by a conjunction, that forms part of and is dependent on a main clause. A subordinate clause cannot stand alone as a sentence because it does not provide a complete thought. in this case answer to your question is although the disc was intercepted</span>
