En el experimento de Watson del Pequeño Albert donde se utilizaron diferentes estímulos los cuales generaron una respuesta condicionada a diversos elementos parecidos, se aplicó el principio de:

Number 3 is the logical, go-to answer for the classical school of thought as they strongly believe that an individual commits a crime of their own free will and fully understands the  consequences, making them liable to whatever punishment is dealt to them. 

The answer is a or b

No one will ever know..

It would have to be c or d