First of all; learn to use commas! I don't know when a job title ends or starts.. But I'm going to guess that it's driver.
Answer:
The noun the underlined participle modifies is:
b. aspects.
Explanation:
In the sentence we are analyzing here, there is a present participle, "troubling". A present participle is formed by adding -ing to a verb stem (interesting, caring, loving, etc.). Present and past participles can function as adjectives, modifying nouns or pronouns in a sentence. That is precisely the case here, where "troubling" is modifying the noun "aspects", attributing a quality to it. For that reason, we can choose letter B as the best option.
Answer: True
Explanation: Nick describes Gatsby's behavior after he confesses his desire to marry Daisy in Louisville, where they originally met. The confession takes place in the middle of the novel, when Gatsby and Daisy have embarked on their affair.