About Question com.enthuware.ets.scjp.v6.2.552 :

[ETS User]

John has written the following class to prevent garbage collection of the objects of this class. Is he mistaken?

True
False

Can the answer choices be more wordy rather than 'true' or 'false'. It just doesn't seem to be proper grammar.

Perhaps;

Yes, he is mistaken
No, his class will work as planned

[admin]

Agreed.