Dr. richards is attempting to train 5-year-old terry to reason at the concrete-operational level. what is the most likely outcome of this training

The options to the question are:

A. Despite what Piaget says, it can be done.
B. It can be done, but only if Terry is already in a state of horizontal décalage.
C. As argued, it cannot be done.
D. Dr. Richards would not have to do any training since most 5-year-olds are concrete thinkers

The most likely outcome of this training is "Despite what Piaget says, it can be done".

~potters6/te801/biology/biounits/respiration.htm