Answer:
<em>Foot-in-the-door</em>
Explanation:
The foot-in-the-door technique (or FITD)<em> is a tactic that is used to convince people to comply to a particular action, based on the assumption that if a respondent fulfills a small initial request,</em> they will be more likely to agree to a later, more important request that they would not have agreed to if they were requested to do so outright.