A research group in Arizona recently conducted a survey among workers of a coal power plant to understand emotions and their happiness quotient. Employees at the plant often complained about poor working conditions and low insurance benefits. However, the group was surprised with the findings of the survey because employees had a positive mood 70 percent of the time during work hours. Which of the following concepts would best explain such findings?
A) butterfly effect
B) framing effect
C) anchoring bias
D) distinction bias
E) positivity offset