raze, raise, rays — 1. It is expected that the young executives will ask for a raze pretty soon. 2. The plan proposes to raise the colonial building and construct a new memorial. 3. The heat rays emanated from the infrared device. In which of the sentences given above has/have the word(s) been used correctly?

'Raze' means to demolish completely - sentence 1 incorrectly uses 'raze' when it should be 'raise' (asking for a raise/pay increase). 'Raise' means to lift up or increase - sentence 2 incorrectly uses 'raise' when it should be 'raze' (to demolish the colonial building before constructing new). 'Rays' means beams of light/energy - correctly used in sentence 3 (heat rays from the device). Therefore, only sentence 3 uses the word correctly.