Benedetto Went to the Park with His Uncle Anastagio

Multiple Choice

Benedetto went to the park with his uncle Anastagio.When he got home,Benedetto told his parents that he saw an eagle,four robins,and 20 ducks.His father asked if Benedetto saw more ducks or more birds in the park.Benedetto said there were a lot more ducks than birds.It seems that Benedetto has not yet mastered

A) class inclusion.
B) seriation.
C) conservation.
D) classification.