According to Piaget's Cognitive Developmental Theory, irreversibility refers to the preoperational child's tendency to

• A. focus on multiple aspects of a situation at once
• B. be unable to mentally reverse a sequence of events or logical operations
• C. understand the concept of conservation
• D. think abstractly and hypothetically

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the concept of irreversibility in Piaget's Cognitive Developmental Theory, which is a characteristic of the preoperational stage (approximately ages 2 to 7).
2. Step 2: Recognize that irreversibility refers to a child's difficulty in mentally reversing or undoing a sequence of events or logical operations once they have been performed.
3. Step 3: Differentiate irreversibility from other cognitive abilities such as focusing on multiple aspects (which relates to centration), understanding conservation (which develops later), and thinking abstractly (which occurs in the formal operational stage).
4. Step 4: Identify that the correct interpretation of irreversibility is the inability to mentally reverse actions, meaning the child cannot imagine undoing a process to return to the original state.
5. Step 5: Conclude that the correct answer is the option describing the child's inability to mentally reverse a sequence of events or logical operations.