B, Have you noticed how hard she works?
Answer:
3
Explanation:
Sentence three is the best choice to introduce the topic because it relates to all the other sentences in an important way. As the primary topic of the entire passage is the white moose, the rarity of the animal, the range of the moose, and the relationship that the moose population has with humans, it is appropriate to mentioned the animal in the first sentence.
You need to add more information. Are you using a textbook? If you are, read the information on the topic
What do you mean about 'Elective courses'? Is it the courses the students chose?
If then, say we have the right to learn what we want.
