Answer:
Senida is approached by a sales person to buy some perfume. The sales person uses the foot-in-the-door technique of gaining compliance to make Senida feel a need to buy the perfume. The sales person is taking advantage of the principle of cognitive dissonance to persuade Senida to buy the perfume.
Step-by-step explanation:
Cognitive dissonance is the state of having inconsistent thoughts, beliefs, or attitudes, especially as relating to conduct decisions and attitude change.