The purpose of the author is to carry the reader along about south of Madagascar and Zanzibar, which implies option A The author shares facts and specific details about the difficulty of sailing in the region.
<h3>How did the author discus about south of Madagascar and Zanzibar?</h3>
The author was able to tell about south of Madagascar and Zanzibar sharing the fact about them.
The word "either" is a correlative. The answer is D. This is because a correlative conjunction connects two nouns and ideas that relates to each other. Either uses "or" so it connects two choices in one situation.
Women go through many difficult things that men have no idea the feelings of. Women have to go through periods and the ability to be pregnant whereas men only have to deal with their penis which isn't really much of a "difficulty" compared to what women have to go through.