Explanation:

- Option 1: Perquisites

- These are non-monetary benefits provided to employees, like a company car or health insurance. They aren't directly tied to organizational profits.

- Option 2: Productivity linked wage incentives

- These incentives are usually tied to the productivity level of employees, encouraging them to produce more or work more efficiently.

- Option 3: Co-partnership

- Involves giving employees shares in the company, making them part-owners. This is often a long-term incentive.

- Option 4: Profit sharing

- Profit sharing involves distributing a portion of the company's profits to its employees. It's a direct reward for the company's financial success.

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- The correct answer is Profit sharing, which fits as the company is sharing profits with employees to recognize their contribution.