After agreeing to nat’s request to share her lecture notes from one class, maria now agrees to nat’s request to share her notes from three classes. this example illustrates the .
a. door-in-the-face
b. foot-in-the-mouth
c. lowball
d. foot-in-the-door

d. foot-in-the-door

Explanation:

The "foot-in-the-door" technique is when you ask for something apparently small and easy to do from a person and then you condition that person into doing more for you.

This is what happened between Nat and Maria. He first asked her to share her lecture notes from one class and she agreed and then he asked her to share her notes from three classes (to which she agreed again).

This makes a person give unconditionally, because the difficulty or effort put into the request increases gradually and it becomes a habit for that person to keep giving and sharing with the person who puts their foot in the door.

i think you really need to revive you answer! : d