Answer:
D. Confirmation bias
Step-by-step explanation:
Confirmation bias is a type of behavior to interpret, favour, search for, and recall information in a way that strengthens or confirms one's personal or hypotheses or beliefs.
People exhibit what is called cognitive bias. this bias is when they interpret it in a biased way or gather and remember information selectively, or, when an effect is stronger for desired outcomes, or deeply-entrenched beliefs or for emotionally charged issues.
From the example, the factory foreman exhibits confirmation bias.