Ricky Wants to Play a Computer Game, but Cannot Quite

Multiple Choice

Ricky wants to play a computer game, but cannot quite figure out how to get the figures to jump and kick. Ricky watches his older sister play the computer game for a few minutes and asks her a few questions. Then Ricky is able to play the game by himself. According to Vygotsky's theory, this is an example of

A) formal operational reasoning.
B) learning in the zone of proximal development.
C) cultural determinism.
D) equilibrium.