Which type of memory allows for the temporary storage of information for about 20 seconds?

The choice that identifies the type of memory responsible for the temporary storage of information for about 20 seconds is correct because working memory is specifically designed to hold and manipulate information that is actively being processed. It serves as a mental workspace where information is temporarily stored while we perform tasks such as reasoning, comprehension, and learning.

Working memory is characterized by its limited capacity, typically being able to hold around 7±2 items at one time, and it is crucial for tasks that require immediate recall. The approximate duration of 20 seconds is indicative of how long information can remain in working memory without rehearsal or active manipulation.

The other options represent different types of memory. Sensory memory captures fleeting impressions of sensory information but lasts only a fraction of a second to a few seconds. Long-term memory refers to the storage of information over extended periods, ranging from minutes to a lifetime, and is where we store knowledge and experiences that we can recall later. Implicit memory, on the other hand, pertains to unconscious memories or skills that we perform without conscious awareness, such as riding a bike or typing. Thus, the characteristics of working memory align perfectly with the question’s requirement for temporary storage for approximately 20 seconds.