Final answer:
Simon can be inferred to be peaceful and kind, as he cares for the young and seeks solitude in nature, which indicates a nurturing and gentle personality.
Step-by-step explanation:
Based on the facts that Simon looks after the 'littluns' and enjoys spending his time alone in the natural jungle setting, we can infer that Simon's character is likely peaceful and kind. These attributes make option A, he is at peace and kind, the most accurate inference about Simon's character. This suggests that he embodies nurturing qualities and feels a connection with nature, which often denotes a gentle personality rather than a dark and evil one. Hence, option B can be disregarded, as there is no evidence to infer that Simon is dark and evil. Option D, suggesting Simon is very social, is also contradicted by the fact that he likes to spend time by himself.