When Williams-Sonoma Introduced Its First Bread Baker at $200, Sales

When Williams-Sonoma introduced its first bread baker at $200, sales were low. But when it decided to offer a fancier $300 version, sales of the $200 bread baker rose tremendously. An economist concluded that consumers needed another bread baker for comparison to decide whether the $200 bread baker was a deal. This economist is likely to be a(n) :

A) traditional economist.
B) behavioral economist.
C) irrational economist.
D) engineering economist.