Which dating technique would yield a result that might read 2.25 million years before present,plus or minus 50,000 years?

Question

Quizplus · Accepted Answer

Potassium-argon dating is a radiometric dating technique used to determine the age of rocks and minerals into which potassium-40 decays to argon-40 with a half-life of 1.3 billion years. This method is used to date rocks that are millions of years old because its range of applicability extends from about 100,000 years to 4.5 billion years. Therefore, the result of 2.25 million years before present, plus or minus 50,000 years, falls within the range of applicability of potassium-argon dating.

Which Dating Technique Would Yield a Result That Might Read