Before hannah can leave the house, she must turn all four gas burners on her stove on and off 24 times, each in sequence. she performs this ritual because she does not trust her memory and fears she can't be sure the burners are actually off unless she does this. hannah is demonstrating which cognitive characteristic of ocd?

Disconfirmatory Bias

Explanation:

Hannah show the signs of dis-confirmatory bias as in this case a person starts to doubt his own past beliefs and recheck or re access  their beliefs in order to satisfy their thinking .Performing ritual again  shows she demonstrate the signs of dis confirmatory Bias.  

the correct answer is individualism and exchange. at this stage, children begin to question the rules, because they can see that there is more than one side to them. different individuals have different viewpoints. they won't be able to reach this stage because of ignorance, a lack of ethics or personal biases. that is because people with that characteristiscs are not able to distinguish what is good or what is bad and they can't pursue their individual interests.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.