In a Study of His Distinction Between a Hot and a Cool

In a study of his distinction between a hot and a cool control system Mischel used the delay of gratification marshmallow test. Which set of instructions described below led to longest delays in gratification? Children who were asked to think about

A) how chewy and sweet the marshmallow will feel in your mouth.
B) the marshmallow as a puffy cloud.
C) how all the sugar will cause tooth decay.
D) how much you will enjoy two marshmallows later rather one right now.