Is looking at someone considered rude? Why or Why not?

In some cultures, however, direct eye contact is considered rude or hostile. ... Real-world staring does not mean failing to blink, but it does mean keeping one's eyes on another person without pausing. This behavior can make the other person feel uncomfortable, as if his or her personal space has been violated.

explanation: the line "to save the day, harry must get past a scary three-headed guard dog" from the summary best justifies the conclusion that harry potter and the sorcerer’s stone was influenced by ancient greek mythological literature. the three other choices had nothing to do with ancient greek literature - and the words "three-headed guard dog" are what makes that choice the correct answer.