If the value of the refractive index increases then:

Correct option is B

When the value of the refractive index increases, the deviation in the direction of light increases: 

•  Refractive index: A measure of a medium's optical density or density. A higher refractive index means that light slows down more in a medium relative to air. 
•  Refraction: The bending of light when it passes from one transparent medium to another.
• Angle of deviation: The angle between the incident light and the refracted light. 
• Relationship: When the refractive index increases, the angle of deviation increases. This is because a higher refractive index means greater refraction, which in turn means a greater angle of deviation. 

The amount of bending depends on the change in speed and the angle of the incident ray. For example, if light enters a substance at a greater angle, the amount of refraction will be more noticeable.