A & C you're right of course
, though, as you say, it is the latest kit - which not so many (older) aeroplanes have, typical of many aeroclubs. Also, I don't think you are allowed to use GPS, in the skills test.
I think Gertrude is really talking about the radio nav on traditional VOR/DME/ADF instruments and has perhaps inadvertantly used a similar but incorrect term, and I just wanted to gently draw attention to a potential misunderstanding.
