The correct answer is C.People would be able to hold tails and pass notes under the table while still keeping both hands on the table.
Step-by-step explanation:
In the formal operational stage as proposed by Piaget, individuals can think abstractly; this implies, they do not only rely on real objects or situations to think but they can use logic effectively and consider complex concepts or situations including hypothetical ones.
n the case presented, it is option C the one that is likely from an adolescent in the formal operational stage because in option C the individual is understanding and thinking about a hypothetical situation or non-concrete situation effectively and due to this, he/she has complex and creative ideas that make him/her think humans could use a tail to pass notes or "People would be able to hold tails and pass notes under the table while still keeping both hands on the table" even when there is no a physical reference of this.