Which word means extremely certain, without any doubt?

• A. Policy
• B. Positive
• C. Plus
• D. Plummet

Answer: (B)

This item tests your ability to recognize a word that conveys certainty. The best choice is the word that means being completely sure, with no doubt. In everyday usage, you can say, “I’m positive this is right,” which means you are absolutely sure and have no doubt about it.

The other words don’t fit this sense. A policy is a rule or plan of action. Plus means in addition or a plus sign, not certainty. Plummet means to fall rapidly, which is unrelated to how sure you are about something.

So, when you want to express extreme certainty, you’d choose the word that can be used to say you are absolutely sure, as in “I’m positive.”