Question

read the paragraph, then choose the word that best completes the sentence.
because the deep ocean lacks the benefits of sunlight, it does not feature the usual diminutive, prolific plant or animal life that forms the foundation of typical food chains. over time, deep - sea organisms have developed abilities and characteristics to cope with this deficiency. some organisms have large mouths that enable them to catch what little food is available, while others make their own light, flashing on and off to attract prey. recently discovered is a family of \yeti crabs,\ which have silky, hair - like filaments on their legs. these crabs live near hydrothermal vents. the chemicals seeping from the vents serve as an energy source for bacteria. scientists believe that the crabs use their filaments to capture the bacteria, which provide them with nourishment.
the creatures benefit from
a adaptations
b domestication
c nearsightedness
d conservationists

Explanation:

The paragraph describes how deep - sea organisms have developed abilities and characteristics (like large mouths, making light, filaments for bacteria capture) to cope with the lack of sunlight and food. These are all examples of adaptations. Domestication (B) is about taming animals for human use, which is not relevant. Nearsightedness (C) is an eye condition. Conservationists (D) are people who protect the environment.

Answer:

A. adaptations