Answer: a) Cognitive
Explanation:
Cognitive component is defined as belief part of attitude that is based with general knowledge of any individual.
According to the question, Molly is showing cognitive component of her attitude that is invoked through the general knowledge she persist regarding her home city.
Other options are incorrect because behavioral factors, affective aspects and knowledge components are not responsible for depicting about attitude of a person through general knowledge.Thus, the correct option is option(a).