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.
Answer:
Zora, a young girl known for her imaginative imagination and proclivity for telling compelling lies, spends her time with her best friend Carrie, who tells the plot
While Joe Clark is violent, angry, and set in his own ways and beliefs.
Answer:
The effect of the authors' use of foreshadowing in Secret In Slovakia is that he wanted to portray the altogether different character of Aunt Gertrude from what the author's family had perceived her to be.