Answer: used to implement a passive investment approach.

## Explanation **Correct Answer: A** Robo-advisers are automated digital platforms that provide algorithm-driven financial planning services with minimal human supervision. They are most commonly associated with implementing passive investment approaches because: 1. **Algorithmic Implementation**: Robo-advisers typically use algorithms to construct and rebalance portfolios based on Modern Portfolio Theory principles. 2. **Cost Efficiency**: They often recommend low-cost index funds and ETFs, which align with passive investment strategies. 3. **Standardization**: The automated nature lends itself well to standardized, rules-based passive strategies rather than active stock picking. **Why B is incorrect**: Robo-advisers are generally subject to the same regulatory scrutiny as traditional investment advisers. In most jurisdictions, they must register with financial regulatory authorities and comply with the same fiduciary standards, disclosure requirements, and suitability obligations. **Why C is incorrect**: Robo-advisers are typically designed for relatively straightforward portfolios and are less suitable for complex portfolios with many different types of assets. Complex portfolios often require customized solutions, tax optimization strategies, and human judgment that automated platforms may not adequately provide. **Key Characteristics of Robo-Advisers**: - Low minimum investment requirements - Automated portfolio construction and rebalancing - Typically use ETFs and index funds - Lower fees than traditional human advisers - Limited customization for complex situations - Suitable for investors with straightforward financial needs

Author: LeetQuiz .