Re-order paragraphs

c) A four-to-six-year-old child sits alone in a room at a table facing a marshmallow on a plate.

a) The child is told: If you don't eat this treat for 15 minutes you can have both this one and a second one.

d) Kids on average wait for five or six minutes before eating the marshmallow.

b) The longer a child can resist the temptation has been correlated with higher general competency later in life.