英语阅读：Mr.Smith teaches English at a school.Today,his student

英语阅读：Mr.Smith teaches English at a school.Today,his student Jack gives a talk turn.He tells
Mr.Smith teaches English at a school.Today,his student Jack gives a talk turn.He tells his classmates about his brother.But when he talks,his eyes are looking at the camp of the world on the wall all the time.Mr.Smith knows why Jack doesn't look at his classmates.He says to Jack with a smile."We know you miss your brother.Is he OK in America now?“
The best title of the article is"______"
A.Mr.Smith B.My brother.C.The attracion of the map