SAT OG第7套题里section5 的第19题为什么选B啊,A 为什么不行?

SAT OG第7套题里section5 的第19题为什么选B啊,A 为什么不行?
19 The author of Passage l would most likely interpret the “exchange” described in lines 42-46 of Passage 2 as being
(A) disturbing,because speakers of audio books enunciate words in a peculiar manner
(B) one-sided.since the listener cannot communicate directly with the speaker
(C) enjoyable.since the listener can hear' a book while performing a monotonous chore
(D)disheartening,because fewer and fewer people are discovering the pleasure of silent reading
(E) inspiring,because it will encourage more people to enjoy classic works