Choose the correct sentence which is built from the words and phrases given:
Laser/ device/ concentrate/ light waves/ intense/ beam.
A.                                        Laser is a devise concentrates light waves into an intense light beam.                                                                                                                                                            
B.                                        The laser is a devise to concentrates light waves to an intense light beam.                                                                                                                                                            
C.                                        The laser is a devise which concentrates light waves into an intense light beam.                                                                                                                                                             
D.                                        Laser is a devise which concentrates light waves and an intense light beam.