About Question enthuware.ocajp.i.v7.2.1073 :

[ETS User]

imo
"Which lines of code in the following program will cause a compilation error?" suggest that there should be more than one correct answers.
But you can select only one option as the answer. maybe rephrase the question?

[admin]

"Lines" has now been changed to "line(s)". We try not to include any hint about the number of correct options in the problem statement because sometimes the users don't want to see the number of correct options.

thank you for your feedback!