A: 20 or 30 second soft.
B: 30 or 1 minute medium.
C: 50 or 2 minutes hard.
Depending on what you choose, and depending on the letter you will get different effects, if for example you choose Slaps + B you have to perform 30 medium slaps.
If you chose Squeeze + A you have to do 30 seconds of soft squeezing.
I hope you understood, and performed well what you chose.
Whenever you choose a category, you can not choose it again right away, then choose another category, and another letter.
A, B or C?