Question

In sub-Saharan Africa, female genital mutilation is

Answer 1

C - definitely not the case, it's very common in Mali
B - also not the case, it's not very common but it's not "unheard of"

As for A and D, it's problematic.
A - hm, this is also not really true, it would be better to call it that it's more common in the east and West and less common in the center
D- In Nigeria 25% of women undergo it, and it also recently banned it - it's not little and it's not "uncommon" but it's less than in other contries in teh region.

so both A and D are partially true, partially false, but I think that A is better than D because  the some of the countries where FMG is most present, Mali and Egypt, are in the north and the southern counties have it less.