Identify the best version of the sentences. Although most of Kafka's books are centered on either a protagonist's loss of identity under a tyrannical regime or disenfranchisement by an oppressive bureaucracy, his books also have a strong focus on the damage done to personal relationships by materialism and image-consciousness.

Explanation: The original sentence: 'Although most of Kafka's books are centered on either a protagonist's loss of identity under a tyrannical regime or disenfranchisement by an oppressive bureaucracy, his books also have a strong focus on the damage done to personal relationships by materialism and image-consciousness.' Option A is the same as the beginning of the original sentence and ends in the correct part of the compound sentence structure. The complete sentence in option A is the correct answer and most likely the correct version of the sentence in the source.