Rickooreo
How did you understand that the construction can't be [from X (in some countries) to Y (in other countries)] and [Z]
This version of the sentence is nonsense.
In this context, "Z" needs to be given a localization (= the writer needs to say where it happens), just as "X" and "Y" do.
If "Z" were something like
the inherent unpredictability of currency exchange ratesthen the sentence could work with the format of choice E, because if this issue is
inherent in exchange rates (which will definitely come into play if someone is considering investments in foreign countries) then it's a universal/ubiquitous/unavoidable risk of foreign investing regardless of the country.
"A severe lack of information about investments", on the other hand, is clearly not a global phenomenon that can be written as a generality. That's a problem that will obtain
IN SPECIFIC PLACES (like the other two problems "X" and "Y"), so we need a modifier that answers "Where?".