Janelle Is a Girl Guide Who Is Trying to Sell

Janelle is a Girl Guide who is trying to sell enough cookies to win a trip to Disney World. Her parents don't have the time to take her out selling cookies door-to-door, so they hire Tamara, Janelle's cousin who is studying psychology at Carleton University, to help Janelle after school for a few weeks while she's trying to sell the cookies. The good news for Janelle is that Tamara has recently learned about the psychology of persuasion.
-Tamara is pulling a wagon with a bunch of Girl Guide cookie boxes.The wagon has a squeaky wheel that makes a lot of noise on the bumpy sidewalk.The number of people who notice Tamara is _______.

A) higher than she thinks
B) lower than she thinks
C) lower than she thinks, but only if she has low self-esteem
D) higher than she thinks, but only if she has high self-esteem