A. They typically see more acutely at night and in dim light than do people who do not have the disorder.
B. They react to extremely bright light in much the same way that people without the disorder do.
C. In an otherwise darkened concert hall, they will see a dimly illuminated red exit sign more clearly than people without the disorder will.
D. The biological mechanism by which they perceive the color red is different from the mechanism of people who do not have the disorder.
(A), (B), (C), (D)
cannot be hypothesis as we are not given any info how people without that disorder perform, hence, this hypothesis of comparison is not supported.
E. Eyeglasses that are transparent to red components of light but filter out other components of light will help them see in moderately bright light.
Yes, it
can be a hypothesis, we are given that people with disorder don't react abnormally to red component of light, thus, if they put eyeglasses which can filter other components of light except red then they will be able to see properly.