Every Shakespearean hero has an internal . . . . . . in his character.

The correct answer is: D. weakness

A Shakespearean hero is a character in a play written by William Shakespeare who is typically brave, noble, and intelligent. However, they often have a weakness that leads to their downfall. For example, Hamlet is a Shakespearean hero who is intelligent and brave, but he is also indecisive and prone to melancholy. This weakness leads to his death.

A fault is a mistake or an error. A defect is a flaw or imperfection. A flaw is a small imperfection or defect.

In the context of the question, the word “weakness” is the most appropriate answer because it refers to a character’s character flaw or imperfection that leads to their downfall.