A.I. Explanation:

Option 1: "To enhance their adaptability and marketability in the job market"

Explanation: The text clearly states that employees who actively pursue learning opportunities enhance their adaptability and marketability in the job market. This aligns directly with the main idea of the passage, which emphasizes the importance of continuous learning for career success. The phrase 'enhance their adaptability and marketability' is explicitly mentioned, confirming that this is the primary benefit of lifelong learning for employees.

Option 2: "To qualify for higher salaries immediately"

Explanation: This option is incorrect because the text does not mention immediate salary increases as a benefit of lifelong learning. Instead, it focuses on adaptability and marketability, which may lead to promotions or career advancement over time, but not necessarily immediate financial gain.

Option 3: "To gain recognition and praise from supervisors"

Explanation: While gaining recognition may be a potential outcome of lifelong learning, the text does not specifically mention this as a benefit. The main focus is on adaptability and marketability, making this option too narrow and not aligned with the overall theme of the passage.

Option 4: "To increase their workload and responsibilities"

Explanation: This option is incorrect as the text does not suggest that lifelong learning leads to increased workload or responsibilities. Instead, it highlights the benefits of adaptability and marketability, which do not inherently imply a greater burden of work.