Example: CREATE
3+1+1+1+1+1
LEARN
1+1+1+1+1
5
TOTAL
13
WORD
COMPUTATION
POINTS
TOTAL

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.  

answer 2 is the right one. jim should measure his snack to make sure he is using the right serving size.