Answer:
habituation
Explanation:
Habituation is a kind of learning process in psychology, which describes the behavioral responsiveness of humans and animals to a stimulus that is presented repeatedly without a change, punishment or reward. It explains that response of humans and animals to a stimulus that is repeatedly presented will reduce over time. The more the repetition, the less response is exhibited.
Hannah is simply exhibiting a lesser degree of responsiveness to the repeated occurrence of same stimuli which is termed habituation.
A. is the correct answer. Qualitative observation deals with data that can be observed with our senses.