Abby is at International Mall shopping for a birthday gift for her roommate Colleen. A sweater in the store window of Bebe catches her eye so she goes in for a better look. Abby knows it's absolutely perfect for Colleen and has her mind made up to buy the sweater. She looks at the price tag and sees that it costs $299. Abby winces and says, "Ouch!" She was expecting the price to be around $75 at the highest. Abby just experienced _____.

A. Price disconfirmation
B. Sticker shock
C. External reference price
D. Everyday high pricing
E. Internal reference price