Thanks for all the replies!
I just teach ATPL groundschool these days, but I despair about what ab-initio students are quizzed on by EASA.
So, `for the exam`; to be awarded the 1 mark I guess the answer is probably "HF with Shanwick and Santa Maria"?
The problem is, I believe another answer in the multiple choice options was "HF/VHF with Shanwick and Santa Maria".