When Concrete Operational and Formal Operational Thinkers Are Asked to Combine

Multiple Choice

When concrete operational and formal operational thinkers are asked to combine a number of clear liquids to produce a blue liquid

A) neither the concrete operational child, nor the formal operational adolescent, test the combinations of liquids in a systematic manner.
B) only the concrete operational child tests the combinations of liquids in a systematic manner.
C) only the formal operational child tests the combinations of liquids in a systematic manner.
D) both the concrete operational child and the formal operational adolescent test the combinations of liquids in a systematic manner.