I stand to be corrected here but I believe the LBA add in non multi-choice questions to the standard CQB, presumably to make it more difficult. You could always go and take your exams in another State if you wish, you'll get a more standard set of exams. On first sight your polar stereo question can only be solved by plotting, ie a scale diagram, which is unusual, unless the answers are widely enough spaced to make 'about 090deg' correct.