Over the course of the passage, the main focus shifts
from a
A
:
..
.

"Dickens had done.” Thus the passage's overall focus shifts from the narrator's love of reading to a specific incident that influences his decision to become a writer. ... Choice C is incorrect because the passage focuses on the narrator's desire to write rather than on whatever skill he may have as a writer.

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the answer would be, she updates her online profiles regularly and participates in work-related online discussions.