A ray of light will bend toward the normal when it travels from a medium with a lower refractive index to a medium with a higher refractive index. This bending occurs because light travels slower in denser media.
In the options provided:
A. We can make it travel from air to glass. - This is correct. When light travels from air (a medium with a lower refractive index) into glass (a medium with a higher refractive index), it bends toward the normal.
B. We can make it go from glass into air. - This is incorrect