Explanation

According to the Global Investment Performance Standards (GIPS), all three groups mentioned can claim compliance:

1. Asset owners - Organizations such as pension funds, endowments, and foundations that manage their own assets can claim compliance with GIPS standards.

2. Consultants who advise investment funds - Investment consultants who provide advice to investment funds can also claim compliance with GIPS standards.

3. Software vendors - Companies that develop software for performance measurement and reporting can claim compliance with GIPS standards.

Key Points:

• GIPS standards are designed to ensure full disclosure and fair representation of investment performance
• The standards apply to any firm that manages assets or provides investment management services
• Compliance is voluntary but demonstrates commitment to ethical standards and transparency
• Firms must meet all requirements of the GIPS standards to claim compliance

Therefore, option C is correct as it includes all three categories that can legitimately claim compliance with GIPS standards.