Assertion (A): Direct personal investigation is always the most suitable method for data collection. Reason (R): It provides original and highly accurate data.
A. A is true, but R is false
B. Both A and R are true, and R is the correct explanation of A
C. Both A and R are true, but R is not the correct explanation of A
D. A is false, but R is true
Answer: Option D
Solution (By JKSSB Mock Tests)
Direct personal investigation is not always suitable, especially for very large populations, although it does yield highly accurate data.
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