Pretty sure it means they chocked her :)
B. A book about how Harry Potter changed throughout the series
A character study is when one looks closely at a character. In option B, the character, Harry Potter, is being closely analyzed as a dynamic character. Option A is about technology, not a character. Option C is about the setting of Tolkein's books. Option D is about weather.
T<span>o inform readers about the life and work of an admired American photographer - the last option - D
Hope this helps!
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