What is the relationship between working memory and cognitive tasks?

• A. Working memory has no impact on cognitive tasks.
• B. Working memory is essential for performing many cognitive tasks effectively.
• C. Working memory only supports motor tasks.
• D. Working memory replaces long-term memory for tasks.

Answer: (B)

Working memory acts as the mental workspace that temporarily holds and manipulates information you need to think through a task. Many cognitive activities—solving a problem, following a sequence of steps, or integrating details as you read—require keeping several pieces of information active while you process them. Because this workspace has limited capacity, performance hinges on how efficiently you can manage what stays in memory and how you update it during the task. That’s why this statement is the best: working memory is essential for performing many cognitive tasks effectively. It supports reasoning, planning, and learning by keeping current information accessible and workable. It doesn’t replace long-term memory, which provides knowledge and schemas you draw on, and it isn’t limited to motor tasks—cognitive tasks across reasoning, comprehension, and problem solving rely on it.