It should be c. Because I had this question before.
Positive or maybe optimistic..
The correct answer would be D, shot. Hope this helps! ^_^
The author’s view of people who damage national parks can be interpreted to be somewhat forgiving. It is forgiving in that the author most likely feels that those who damage and/or cause destruction to national parks do so ignorantly because as he quotes a park ranger, “…the vast majority of people are just making an innocent mistake” such as taking a small piece of petrified wood or tossing a penny into a geothermal vent.
The Subordinate clause is "Although the disc was intercepted."
because a subordinate clause is a clause, typically introduced by a conjunction, that forms part of and is dependent on a main clause. And that is why subordinate clauses are also dependent clauses.
