Answer:
A. Some tribes are nomadic, while others are settled in one place.
Answer:
The answer is B
Explanation:
transitional expression can be useful for making a text or a speech flow well, with clear connections between ideas. However, inexperienced writers will often use these phrases too often, peppering them in every sentence or multiple times in a single sentence, which can actually have the opposite effect: confusing readers or obscuring the point, rather than clarifying the point.