I chose D over B because of the following reason
MeaningAmy wanted to explain how dangerous a culture of silence can be.
How she wanted to explain? She quoted an incident from her book The Fearless Organization by Amy Edmondson.
What was the incident? the crash between two Boeing 747 planes in the Canary Islands in 1978, one of the deadliest accidents in history, which happened because a co-pilot chose not to question his captain’s decision.
ExplanationAmy's main action is to explain something. And she wanted to explain by quoting something from her book
Option B:-Explaining how dangerous a culture of silence can be, Amy Edmondson, in her book The Fearless Organization,The meaning is entirely changed and actually nonsensical
Here meaning says... she quoted something by explaining how dangerous a culture of silence can be.
Had it been the sentence was
Quoting the crash between two Boeing 747 planes in the Canary Islands in 1978, one of the deadliest accidents in history, which happened because a co-pilot chose not to question his captain’s decision, Amy Edmondson explained how dangerous a culture of silence can be in her book The Fearless OrganizationThis would have still made some sense.
Option D:-To explain how dangerous a culture of silence can be, Amy Edmondson, in her book The Fearless Organization,
This is giving the intended meaning of the sentence.