Because he is a blind prophet
While she slept, the mother was oblivious to the exploits of her children.
Hope this helps you!
From the first sight I thought that all of the options are suitable, but then I realized that the most powerful tool that makes audience to listen (not just hearing) to pay attention to the most important part of speech is to slow down or pause. It is called situational semantic pause which is used during a speech, usually after the words on which people should be focused, so that the quiet will make audience comprehend its importance.
Answer:
D. a Coast Guard website link entitled "Best Boating Practices"
Explanation:
A website ending in .edu and .gov are the most reliable online sources. Since the Coast Guard is a government service, it is the most reliable.