A mountain 12,000 feet high would be a horrible monster here, as wrong as a plain 400 miles long, a river as broad as the Mississippi.
A.A high mountain here would frighten people；so would a vast plain and a river like the Mississippi. B.Here high mountains, vast plains and broad rivers are not popular and are regarded as horrible monsters. C.A high mountain would be out of place here；so would a vast plain and a broad river. D.In this country people like smaller mountains, plains and rivers, for this is a small country.正确答案C
