To describe immigrants difficult experiences in America.
b.subordinate clause.
A subordinate clause is essentially a sentence fragment. It can't stand by itself and make sense. That means it is dependent on an independent clause for meaning. It can be connected to that independent clause either before or after it.
Ex.
Dependent (subordinate) clause: when you get home
Independent clause: We will watch TV.
Combined: We will watch TV when you get home.
Combined: When you get home, we will watch TV.
The two mistakes in the sentence are "trophys" and "metals".
The plural form of "trophy" is "trophies" not "trophys" because the plural form of nouns that end in "-y" is usually "-ies".
In the sentence, "metals" is not wrongly spelled but it does not make much sense. It is quite strange to say to someone not to touch trophies and metals, the two objects do not seem to have any type of relationship. If you consider that the person is talking about awards and prizes, instead of metals, he or she is referring to "medals".
Even though there are two more mistakes, I don't think the question aims at those. Just remember that the sentence should start with a capital letter and finish with a full stop.
So the sentence would read: Do not touch trophies or medals.
