Situational because he is expressing his feeling on a situation
Gulf is the final answer :)
Aloof:
Synonym: detached
Antonym: grounded
Bleak:
Synonym: chilly
Antonym: warm
Cunning:
Synonym: keen
Antonym: ignorant
Elite:
Synonym: exclusive
Antonym: inferior
Emotional:
Synonym: sensitive
Antonym: numb
Frustration:
Synonym: irritation
Antonym: pleasure
Grimly:
Synonym: brutally
Antonym: weakly
Impersonal:
Synonym: abstract
Antonym: compassionate
Ornery:
Synonym: ill-tempered/cranky
Antonym: friendly
Passionate:
Synonym: intense
Antonym: dull
Pity:
Synonym: empathy
Antonym: harshness
Quivering:
Synonym: trembling
Antonym: still
Resigned:
Synonym: satisfied
Antonym: unwilling
Sassy:
Synonym: cheeky
Antonym: incoming
Sophisticated:
Synonym: refined
antonym: unrefined
I believe that the correct answer is D because it is already stated once that they need the sirens so it is giving us a fact that has already been stated.