Question: DNA from Alexandre Colonna-Walewski's descendants has been used to confirm what attribute of Napoleon's?

Is "He may have had further unacknowledged illegitimate offspring as well, such as Eugen Megerle von Muhlfeld by Emilie Victoria Kraus and Helene Napoleone Bonaparte (18161907) by Albine de Montholon." the correct answer?
Available choices: A). yes B). no
B).