For the second question B
is the correct answer, you are not getting it wrong! Should know, I taught ATPL Principles of Flight briefly, and more importantly am a flight instructor. How does your instructor teach a flapless approach? You reduce power and come in lower than usual for a flat approach!
Well done in beating the confuser
I always assumed it was accurate (never having used it) because it corrects the met question the CAA get wrong!
I always tell my ATPL groundschool students "A stupid question is one you think of in the exam hall". Could equally say "in the aircraft".