Question

researcher paul klaczynski and his colleagues found that during adolescence, the social context, overall intelligence, and — become major influences on cognition.
o training in statistics
o parental encouragement
o instruction in symbolic logic
o trial - and - error

Explanation:

The question is about factors influencing cognition during adolescence, with options related to different influences. Parental encouragement is a social - context - related factor that can impact cognition. Training in statistics (more academic skill - building), instruction in symbolic logic (specific academic instruction), and trial - and - error (a general learning method) are less related to the social context and overall intelligence influence as described. So parental encouragement is the most appropriate choice.

Answer:

O parental encouragement