Step 1: Understanding the Concept:
This question requires identifying the figurative meaning of an idiom. Idioms are phrases whose meanings cannot be understood literally from the individual words themselves, but instead rely on historical, cultural, or allegorical backgrounds.
Step 2: Detailed Explanation:
The idiom "an axe to grind" comes from an old story popularized by Benjamin Franklin about a cunning boy who wanted to sharpen his blunt axe. He flattered a man, called him hardworking and handsome, and convinced him to turn the heavy grindstone for him. As soon as the axe was perfectly sharp, the boy walked away laughing without thanking the man.
In modern English, the phrase means having a hidden, private, or selfish motive for doing something, or performing a favor only because you expect a personal advantage later. This matches option (B). Let's review why the others are incorrect:
- Option (A) is the misleading literal meaning of the words.
- Option (C) refers to putting your nose to the grindstone.
- Option (D) refers to breaking ties or parting ways.
Step 3: Final Answer:
The idiom "axe to grind" means to have a selfish motive.