This excerpt could be considered humorous because of the way in which the events are retell and because of the choice of words. their arrival is portrayed in such a way that the reader might think, it could have a deeper meaning. For example
"<span>It regarded us a while without curiosity but with caution, and after we were seen to be harmless" This might be understood as a fun way of expressing that people were all over them, to check who they were, they pay close attention to these "new people" until they were convinced they are fine. </span>
<span>Clark changed from a gangly, uncomfortable child to A. a happy, successful adult.
As opposed to his aunt who practically raised him, Clark changed positively, whereas her transition was quite negative. She changed from an accomplished musician into a farmlady who would never become satisfied about her life again. On the other hand, Clark's transition from a shy kid to a satisfied man is quite a different story.
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The answer is D, "They want to prevent him from reading"
The answer is the word "no"