Ralph's alumni organization calls him and asks if he could donate $5 to the annual fund. Ralph agrees. Two weeks later, they call again and ask him whether he would donate a few nights to calling other alumni and soliciting donations. Ralph's alumni organization is using the

Select one:

a.

foot-in-the-door technique.

b.

the that's-not-all technique.

c.

door-in-the-face technique.

d.

the lowballing technique.