Which is a plausible explanation of why some plants, such as the japanese red maple, are not green in color?

a)
the plants are camouflaged to avoid predators.

b)
the plants use some other system to make their food, besides photosynthesis.

c)
the plants use other colors of light in photosynthesis that green plants cannot use.

d)
all plants like this are genetically engineered by people to artificially make them red in color.

I would have to say c if I am wrong sorry:)

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.