If a light ray is incident on a reflecting surface with an angle of incidence of $30°$  then :

• According to the law of reflection of light, 
  The angle of incidence = Angle of Reflection, 
  where, the angle of incidence is the angle between the incident ray and the normal, and the angle of reflection is the angle between the reflected ray and the normal.
• In the given example, 
  The angle of incidene= 30^o
  $\therefore$The angle of reflection= 30^o 
• Since normal is perpendicular to the surface of the mirror. The angle between the reflected ray and the normal= 90-30= 60^o. Therefore, the last statement is incorrect.

Therefore, only the first option, 'The angle of reflection will be $30°$. ' is correct.