Which statements regarding complex (combined) instruments are true?

The focus on the statement that complex (combined) instruments are not able to support all order types highlights an important aspect of how these instruments operate within trading platforms. Complex instruments are made up of multiple simpler instruments, or legs, that can create a position with specific risk and return profiles.

While trading complex instruments allows for a range of strategies that can respond to market conditions, the limitation on order types stems from the complexity involved in executing orders that combine different legs. Some order types, especially those that might be more straightforward for individual simple instruments, may not be applicable or may not function as intended when dealing with complex orders. This makes it essential for traders to be aware of which specific order types are compatible with complex instruments to efficiently manage their trades.

The other aspects regarding complex instruments do not accurately capture their nature. For instance, while the exchange plays a significant role in defining the framework for trading complex instruments, they are not exclusively defined by the exchange since market participants can also develop combined strategies. Additionally, complex instruments are typically available for trading both on-book and off-book, enhancing their accessibility. Finally, although it is true that complex instruments consist of various simple instruments, this does not relate directly to the functional limitations regarding supported order types, which is the