In Option D, could you please explain why the part within the commas in the option that I chose can't be thought of as an appositive?
The 151 member governments of the World Bank are expected to increase the bank’s funding by $175 billion, though some United States legislators cite an obstacle to Congressional passage being the concern that the bank’s loans will help foreign producers compete with American businesses.
(A) an obstacle to Congressional passage being the concern
(B) a concern as an obstacle to Congressional passage
(C) as an obstacle to Congressional passage the concern
(D) the concern, an obstacle to Congressional passage,
(E) as an obstacle for Congress to pass it the concern
In Option D- an obstacle to Congressional passage is within commas. This means that it is a non-essential modifier that can be removed from the sentence without affecting the meaning of the passage.
But, can it be removed from the sentence? No. It is crucial to the meaning of the sentence and hence cannot be treated as a non-essential modifier.