UGC NET Research Q22

Question

Below are given two sets – research methods (Set-I) and data collection tools (Set-II). Match the two sets and indicate your answer by selecting the correct code :
Set – I (Research Methods)
a. Experimental method
b. Ex post-facto method
c. Descriptive survey method
d. Historical method
Set – II (Data Collection Tools)
i. Using primary and secondary sources
ii. Questionnaire
iii. Standardized tests
iv. Typical characteristic tests
Codes:
  a b c d
(1) ii i iii iv
(2) iii iv ii i
(3) ii iii i iv
(4) ii iv iii i