Which technique indoctrinates people into performing actions against their beliefs by initially requesting them to carry out apparently small, harmless tasks? classical conditioning foot in the door operant conditioning role playing

The technique used in making people go against their personal beliefs by making them do simple, harmless, and modest tasks, or activities is called the foot-in-the-door technique. The FITD technique was conceptualized by Jonathan Freedman and Scott Fraser in 1966. The technique assumed that when a person agrees to a simple and small request, the likeliness of him/her agreeing to a bigger request in the future will increase. 

(the column on the right side has numbers 1-4 as well)

from left column to the right marching definition column:
1=2
2=4
3=1
4=3