What is an ETF? How do ETFs differ from open-end stock funds? Question content area bottom Part 1 (Select the best answer below.) A. ETFs are similar to open-end mutual funds except they can be traded like stocks throughout the day. ETFs are designed to mimic particular stock indexes or sectors and are not actively managed. Closed-end stock funds only trade after the markets close and are traded at net asset value. B. ETFs are similar to closed-end mutual funds except they can be traded like stocks throughout the day. ETFs are designed to mimic particular stock indexes or sectors and are actively managed. Open-end stock funds only trade after the markets close and are traded at net asset value. C. ETFs are similar to closed-end mutual funds except they cannot be traded like stocks throughout the day. ETFs are designed to mimic particular stock indexes or sectors and are not actively managed. Open-end stock funds only trade during the day and are traded at net asset value. D. ETFs are similar to closed-end mutual funds except they can be traded like stocks throughout the day. ETFs are designed to mimic particular stock indexes or sectors and are not actively