Pen : Write :: Knife : ?

**The reasoning** This is an **analogy question** — it tests your ability to see relationships between pairs of words. The pattern is: *Tool : Function* A pen's PRIMARY FUNCTION is to write. So we need to find what a knife's primary function is. - A pen **writes** (what it does) - A knife **cuts** (what it does) The relationship must be the same on both sides. Just like "write" is a verb describing what a pen does, we need a verb describing what a knife does — and that's "cut." **Why the wrong options tempt you** - **A) Sharp** — This describes a *quality* of a knife, not its function. It's like saying "Pen : Write :: Knife : Shiny" — wrong relationship. - **C) Long** — Another descriptive quality, not what the knife *does*. - **D) Metal** — What a knife is *made of*, not what it does. It's like saying "Pen : Write :: Knife : Steel" — breaks the pattern. **Quick takeaway** In analogies, match the *type* of relationship: if the first pair shows **object → action**, the second pair must too. Always ask: "What does this thing **do**?" not "What is it like?"