Which detail belongs in the thoughts/feelings area of this web?

“With the air now scorching hot, Chamberlin did what he should have done in the first place.”

“Claire Innes, Joseph Chamberlin . . . had . . . seen mass panic, crime, and acts of violence.”

“Despite the fire's approach, the heat and shower of burning debris, Chamberlin remained calm,”

“Chamberlin . . . crawled up onto one of the bridge's arched railings.”

answer; /// the correct answer to the above statement is (a) because of the decline on native american labor forces;

the answer is somber