I think that it would be the last one.
The Eastern part of the African region is composed of a variety of traders and this has led to different developments and a mixture of different races including the Arabs, Africans and Persians. The cities in this area are rapidly growing, have been modernized with skyscrapers and huge buildings and also attracted many less fortunate people who ended up in slums. The answer is D.
Your answer is C.Baffin Island.
Hope this helps :)
Canada's largest island is Baffin island
D. a new substance is formed. if it is chemical change then it is actually changing to something new. In this case a new substance is formed. It is a completely different substance from what you started out with.