Correct Answer: Both assertions and reasons are correct, and the reason is the correct explanation of the assertion.

Solution : The correct answer is:a) Both assertions and reasons are correct, and the reason is the correct explanation of the assertion.

The assertion that the principle of "Division of Labor" increases the adaptability of an organization is correct. While it might seem counterintuitive at first, division of labor, when appropriately implemented, can enhance adaptability by allowing employees to focus on specialized tasks. This specialization can lead to quicker task execution and improved response to changes and challenges.

The reason provided, stating that it allows employees to focus on specific tasks, reducing the learning curve for new responsibilities, is also correct. Division of Labor does reduce the learning curve for particular tasks, enabling employees to become more proficient in their specialized roles, which can contribute to increased efficiency and adaptability.

Therefore, both the assertion and the reason are correct, and the reason appropriately explains why division of labor can lead to enhanced adaptability within an organization.