Answer:
Door-in-the-face technique.
Explanation:
This method is commonly used in the field of social psychology. It is a type of compliance method. The basic principle is to ask someone for something huge, make a large request which will most probably be turned down. Then, after proposing a smaller, more reasonable request, the respondent is more likely to accept this proposal or request. This method is used to increase the likelihood of agreeing to your request (second).