People Who Practise Willpower 'Exercises' Find That They ____

Multiple Choice

People who practise willpower 'exercises' find that they ____.

A) temporarily deplete their willpower resources and show no improvement in willpower levels in the long term
B) temporarily deplete their willpower resources but develop stronger levels of willpower in the long term
C) show improvement in their willpower levels immediately (while they are 'exercising') , but show no improvement in willpower levels in the long term
D) show improvement in their willpower levels both immediately (while they are 'exercising') and in the long term