Older animals are usually surly and ill-tempered.- That can be a sentence in itself as well as the second part. Accordingly it is unwise to attempt to pet a grown raccoon. All the semicolon is doing is combining two sentences to make them one.
Explanation:
Please where is the question
The first choice is correct
Because of their cultural and economical differences.
The mood is B, Contemplative and quiet because the narrator is far from where the owner lives
