Sarah Covington, a Sales Manager at Synergy Corporation Bank, Often

Sarah Covington, a sales manager at Synergy Corporation Bank, often keeps low expectations of her team. She feels that they are underqualified for their job and do not have substantial experience to sell a large number of accounts. Covington's team does not feel motivated enough and invariably underperforms and misses targets on a regular basis. Which of the following concepts best explains Covington's team's poor performance?

A) hindsight bias
B) self-fulfilling prophecy
C) confirmation bias
D) contrast effect
E) bandwagon effect