What is sensitivity analysis in the context of mining economics?

What is sensitivity analysis in the context of mining economics?

• A. A study varying key inputs (gold price, capex, opex, grade) to see how results like NPV and IRR respond.
• B. A method to forecast only gold price movements using historical data.
• C. A way to increase production without changing variables.
• D. A statistical test to prove the project will succeed with certainty.

Answer: (C)