C. has, singular. The verb form is describing a boy which is singular
The Lost World<span> is a novel released in 1912 by </span>Sir Arthur Conan Doyle<span> concerning an expedition to a plateau in the Amazon basin of South America where prehistoric animals (</span>dinosaurs<span> and other extinct creatures) still survive. It was originally published serially in the popular </span>Strand Magazine<span> and illustrated by New-Zealand-born artist </span>Harry Rountree<span> during the months of April–November 1912. The character of </span>Professor Challenger<span> was introduced in this book. The novel also describes a war between </span>indigenous people<span> and a vicious tribe of ape-like creatures.</span>
That's because she was an activist for environmental protection. Green as an adjective often refers not to the color, but rather to describe someone who is environmentally friendly. In this case, her literature fought for preserving the nature and save the environment, so it is therefore green.
The correct answer is B. shared ideas.
Works written during the same literary movement are connected to each other by the same motifs and general feelings about that particular era. For example, during Romanticism, it was popular for authors and their protagonists to be solitary heroes, who are always misunderstood, but quite passionate about their work.