A rectangular glass prism of thickness d and absolute refractive index n is placed on a point object which is viewed vertically downward from above the prism. Which of the following expressions correctly defines the apparent upward displacement of the object?

• A.\(\frac{d}{n}\)
• B.dn
• C.\(\frac{d}{n - 2}\)
• D.\(\frac{d(n - 1)}{n}\)