For a denied visitor visa in the past, which should you select? Both B and C, just B, or just C?a) Have you ever remained beyond the validity of your status, attended school without authorization or worked without authorization in Canada? YES/NO
b) Have you ever been refused a visa or permit, denied entry or ordered to leave Canada or any other country? YES/NO
c) Have you previously applied to enter or remain in Canada? YES/NO
Also, for the explanation that you have to provide, whats the best thing to write? Just the generic reasons on the refusal letter, or the visa officers notes, or something else?