Last summer I happened to be crossing the plains
The correct option is 2)Argumentative: In an argumentative text you discuss a subject or problem from different perspectives. At this time, Anna Quindlen the author of "A quilt of a country" states that although the great diversity found in America creates a lot of problems in the cities, it also serves as a quality to make America more special, and for this she uses a literature metaphor: Quilt, to put into other perspective her intention in the text. Although the author recurs to real episodes happend in America It's not autobiografical because doesn't talk about a particular person's life. It's not fictional because most of information is based on real facts, although uses literature metaphors to make the idea clearer.
Explanation:
At a neighborhood fair in Texas, somewhere between the German Oom-pah Sausage Stand and the Mexican Gorditas booth, I
The correct answer is B, because a 'compound-complex clause' consists of two independent clauses (in this case, 1. 'the dog wagged its tail' + AND + 2. '(the dog) barked') and one dependent/subordinate clause ('when I opened the door').