Final answer:
Crooks appears defeated, hunched over and crushed.
Step-by-step explanation:
The visual image of Crooks that Steinbeck creates as he is mentally and emotionally defeated by Curley's wife is option b) Crooks appears defeated, hunched over and crushed.
In the text, Steinbeck describes how Crooks sees himself as he might be: strong, helpful, and kindly. However, as Curley's wife starts to berate him, Crooks's confident image crumbles. Steinbeck uses phrases like 'hunched over' and 'crushed' to convey the emotional and mental defeat that Crooks experiences.