It can tell us about the past events, and the people lives at those times.
(A) Wireless Modems is the answer. This is the best choice! See if you think about it, you will also come to the conclusion that the answer is (a).
Answer:
Theme: Don't worry if you get lost, if you are resourceful, you will always find a way home.
Explanation:
In Dover Beach by Mathew Arnold, the speaker describes the sea at night, how it looks and sounds as it crashes against the moonlit coast. The speaker calls the reader to come and observe with him such a marvelous view. In line one he states "The sea is calm tonight.", while in line five he emphasizes "... <span>out in the tranquil bay. ".
Therefore, your best answer is calm/tranquil.</span>