Explanation
A Canadian equity index fund is a type of mutual fund that invests in a basket of Canadian stocks that track the performance of a market index, such as the S&P/TSX Composite Index. A Canadian equity index fund can be a tax-efficient option for a non-registered account, because it can generate capital gains and eligible dividends, which are taxed at lower rates than interest income or foreign dividends. A bond fund, on the other hand, would produce mostly interest income, which is fully taxed at the marginal rate. An asset allocation fund or a target date fund would have a mix of different asset classes, such as bonds, stocks, and cash, and may not be as tax-efficient as a pure equity fund123 References = web search results from search_web(query="tax-efficient investment options in Canada")123 and Canadian Investment Funds Course (CIFC) - Module 2: Investment Products - Section 2.2: Mutual Funds4
4: https://www.ifse.ca/wp-content/uploads/2021/08/CIFC-Module-2.pdf

Explanation
The "Know Your Product" obligation requires that Dealing Representatives understand all the products they purchase, sell or recommend for their clients, including their structure, features, risks, costs and suitability.
Rehan has fulfilled this obligation by reviewing the features of the Hedge Fund and explaining them to Georgi, who may not be aware of the lock-up period and its implications. The other Dealing Representatives have failed to fulfill their obligation by either not knowing or not disclosing important information about the products they deal with.
References: Canadian Investment Funds Course, Chapter 7: Know Your Product1