Answer: shaping
Explanation: The game described above is an example of shaping also known as behavior-shaping which is a type of behavior modification technique (a variant of operant conditioning) in which a behavior is taught by differentially reinforcing successive approximations to the target behavior. In other words, successive approximations to the desired behavior is rewarded. Here, a subject is not waited upon to exhibit a desired behavior, but is rewarded when it exhibits any behavior leading to the desired behavior.
The answer is "Contextual."
Abraham is using "maintenance rehearsal" to keep the information active in his working memory.
Maintenance rehearsal refers to a kind of short-term memory which is good to keep the information for a short time span also known as working memory but this is not useful method to keep the information into long term memory.
