In a Study by O'Neill and Gopnik (1991), 4- and 5-Year-Olds

In a study by O'Neill and Gopnik (1991) , 4- and 5-year-olds were able to describe what was in a tunnel and how they knew what was in the tunnel. Three-year-olds were not as able to identify the sources of their knowledge as evidenced by which of the following?

A) The children could not identify what was in the tunnel.
B) Many children identified a ball in the tunnel when there was none.
C) Some children identified a ball as blue after feeling it but not seeing it.
D) Some children reported seeing things in the tunnel that were not there.