Task: Question Answering
Input (English): Question: Which of the following tests fits within the G-Factor Tests? 
 Options:  <1> The test of primary mental abilities (PMA). <2> The test of progressive matrices (Raven). <3> The battery of differential abilities (DAT). <4> The McCarthy scales (MSCA). <5> The Bayley scales of child development.
Output (English): 2