The major challenges to historical research revolve around the problems of sources, knowledge, explanation, objectivity, choice of subject, and the peculiar problems of contemporary history. Sources The problem of sources is a serious challenge to the historian in the task of reconstructing the past.
Answer:
Italy
Explanation:
Because the other 3 are already in the united nations
What would you like help with exactly?
Answer:
So it looks like you have to right 2-5 sentences of what the sentences are
for an example the D-day and Normandy landings so you would right 2-5 sentences of the d-day
Does that make since.
Hope I can help.
The answer in the question provided is letter b, lack of
industrialization. It is because developing nation or country usually involves
of having industrial bases to be less develop than of the developed countries
in which lack industrialization is one of the things found in a developing
nation.