When evaluating an AC in Assumption Necessary questions, which question should you ask yourself?

When evaluating an AC in Assumption Necessary questions, which question should you ask yourself?

• A. Is this enough?
• B. Do I need to know?
• C. Does this prove the claim?
• D. Can this be tested?

Answer: (B)

In Assumption Necessary questions, you’re focusing on what information must be true for the conclusion to follow from the premises. The best question to ask is: Do I need to know this? Because if a piece of information is required for the argument to hold, then without it the conclusion can’t be justified by the premises. If you can imagine the conclusion occurring even when that information were missing or false, it isn’t a necessary piece. Why the other prompts don’t fit as well: Is this enough? asks about sufficiency—whether the information alone guarantees the conclusion, which is broader than necessity. Does this prove the claim? targets whether the information supports the conclusion, which again is more about justification than whether the information is required. Can this be tested? relates to verifiability, not to whether the information is essential for the argument to work. So, asking “Do I need to know?” directly targets the necessity of the information for the argument to hold, making it the right approach.

In Assumption Necessary questions, you’re focusing on what information must be true for the conclusion to follow from the premises. The best question to ask is: Do I need to know this? Because if a piece of information is required for the argument to hold, then without it the conclusion can’t be justified by the premises. If you can imagine the conclusion occurring even when that information were missing or false, it isn’t a necessary piece.

Why the other prompts don’t fit as well: Is this enough? asks about sufficiency—whether the information alone guarantees the conclusion, which is broader than necessity. Does this prove the claim? targets whether the information supports the conclusion, which again is more about justification than whether the information is required. Can this be tested? relates to verifiability, not to whether the information is essential for the argument to work.

So, asking “Do I need to know?” directly targets the necessity of the information for the argument to hold, making it the right approach.