Rica is trying to influence her boss into giving her an estra two vacation days. she first asks for ten extra days. her boss says no$.$ Afterwards, she ask for two days. Rica has used the $\_\_\_\_\_\_\_$technique to try to get what she wants.

low$-$ball

foot$-$in$-$the$-$door

step

foot$-$in$-$the$-$face

none of the ball