Option (a) is correct.

The passage discusses the concept of status quo bias and its exploitation, highlighting one of the causes of status quo bias as a lack of attention. It is the tendency of individuals to prefer the existing or current state of affairs over change. One of the causes of this bias is a lack of attention, where people adopt a heuristic called the "Yeah, whatever" mindset. This mindset leads to a passive acceptance of the status quo without actively considering alternatives or making deliberate choices.

विकल्प (a) सही है।

यह गद्यांश मुख्यतः यथास्थिति पूर्वाग्रह और डिफाल्ट विकल्पों के विषयों की विसंरचना है।