Administration of the instrument on two or three respondents to find out its flaws is termed as?

Administration of the instrument on two or three respondents to find out its flaws is termed as?
(a) Pilot study
(b) Try out
(c) Validation
(d) Appropriateness
✅ Answer: (b) Try out
Explanation: Try out refers to testing a tool on a small sample to identify flaws.