Conflict is the base of the story. Without conflict, the story has no plot, the characters don't experience anything, and there isn't really any developments at all. As for the second question, I think that's your own opinion.
We as Americans have the right to freedom, and liberty!
The correct answer is one main clause.
This means that there is only one verb in the sentence, which in this case is the verb 'was.' Even though drive is also a verb, in this context it is used as an adjective driven (participle form of the verb to drive) and is thus not considered to be a verb. This means that there are no subordinate clauses but rather just one main clause.
