I think the answer is Layer D
The excerpt that helps infere the evidence of awareness and importance of zimmerman's message is the one that states the type of action Zimmerman performed. When the excerpt says that he clearly wanted the mexican government to help germany in the war, he sent the telegram . This information is clear enough to see the importance of the message. remember the content is very straight and is not just a group of details without importance
For some emergencies things like accident, crime, muder,... and also like forest fire or house fire,...
Rip cow.. you will be missed
