They might have not been cool and calm, you didn't add the story
Solution:
Ulrich Von Gradwitz is unable to shoot his enemy when he suddenly encounters him because of the “code of a restraining civilization”. This code prohibit shooting a neighbor in cold blood without warning or words exchanged unless the offense one against a man’s honor or his family.
Answer:
d
Explanation:
"The energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve it—and the glow from that fire can truly light the world."
