which one is correct and why ?

Question 6 Not complete Marked out of 1.00 P Flag question What is the benefit of Indexation using Exchange Traded Funds? O Indexation enables an investor to benefit from highly volatile market moves. O Indexation smooths returns and replicates an underlying benchmark index. There is little benefit to Indexation other than it reduces costs. Investors who seek volatility can use Indexation with high returns. Check