A Beam of Light Passes from Air to Water at an Incident

Multiple Choice

A beam of light passes from air to water at an incident angle of 40°,relative to a plane perpendicular to the boundary between the two.At what angle will it emerge into the water,relative to a plane perpendicular to the boundary?

A) Less than 40°
B) Exactly 40°
C) More than 40°
D) There is not enough information to answer the question.