Given below are the three type's psychological investigations: (1) Field experiments, (2) Laboratory experiments, and (3) Ex post facto field studies. If the above investigations are arranged in descending order in terms of researcher's ability to control secondary variance, the typical order would be

• A. 2, 1, 3
• B. 3, 1, 2
• C. 2, 3, 1
• D. 3, 2, 1