IMO E
By focusing on poverty--> should be modifying the sociologists so we need sociologists after this as the subject of main clause. I am bolding the subject off the main caluse below
By focusing on poverty, the other causes of crime—such as the breakup of the nuclear family, changing morals, the loss of community, etc.—have been overlooked by sociologists.
(A) the other
causes of crime—such as the breakup of the nuclear family, changing morals, the loss of community, etc.—have been overlooked by sociologists.
(B) the other
causes of crime have been overlooked by sociologists—such as the breakup of the nuclear family, changing morals, the loss of community, etc.
(C) there are other
causes of crime that have been overlooked by sociologists—such as the breakup of the nuclear family, changing morals, the loss of community, etc.
(D)
crimes—such as the breakup of the nuclear family, changing morals, the loss of community, etc.—have been overlooked by sociologists.
(E)
sociologists have overlooked the other causes of crime—such as the breakup of the nuclear family, changing morals, the loss of community, etc.