Eleven-Year-Old Evan Was Asked by His Math Teacher,"If Adam Is

Multiple Choice

Eleven-year-old Evan was asked by his math teacher,"If Adam is older than Bill and Bill is older than Cathy,who is the oldest?" This question was too abstract for Evan,and he was unable to answer.This shows that Evan is in which stage of development?

A) the egocentric stage
B) the formal operational stage
C) the concrete operational stage
D) the preoperational stage