The individual is likely engaging in critical thinking. This
is where an individual is likely to engage in analyzing or evaluating an issue
or information in means of forming a judgment based on the results or data that
the individual has gathered on.
I believe the answer is: eustress
Eustress refers to refers to the changes that our physical body do when it experience a certain level of pressure from taxing demands. One example would be when it increase adrenaline level in our body when we are excited or facing a fight or flight situation.
Among the options provided, the one that answers the question is letter B: "It meant people didn't have to give up their old gods when converting to Hinduism".