Firms Use Various Methods for Identifying Customers Such as ________

Multiple Choice

Firms use various methods for identifying customers such as ________ and ________.

A) observable characteristics such as willingness to wait in long lines; their actions such as whether or not they live a long time
B) observable characteristics such as age; their actions such as willingness to wait in long lines
C) the color of their hair; whether or not they roll their eyes at high prices
D) None of the above.