The proportion of education vary massively by country throughout Africa; and gender differences in literacy are noticeable.
The age factor is also significant as younger generations are more likely to be literate than older generations in North Africa as in other parts of the world.
In the 1990s, literacy rates in North Africa were around 40-60%, with Libya, Tunisia and Algeria being around the top of the list; around 2010 the rate went up to around 84%, and female literacy in particular from 39% in 1990 to around 70% percent in 2007. The rest of North African countries oscillated around 50-60%.
There have been radical recent improvements according to UNESCO recent reports in 2017, North African people in general are far more likely to be literate than 50 years ago, coming from 64% to 81% ; and young people in particular, from 80% to 90%.
Even with the progress, gender disparity remains persistent; women aged 15 to 24 are still less likely to have basic literacy than men, which highlights the need for greater investments. The answer would be (C)