the foreign community through the Cohong
I hope that's help.
The correct answer is ARMENIANS.
During WWI, The Ottoman Empire slaughtered 1.5 millon Armenians within the empire.
Black holes themselves can not be seen, nor do they leave trails (since emptiness does not have to be caused by a black hole), but there is evidence for black holes: scientists can see the effects of their gravity on nearby stars. The answer is B.