The city's rapid expansion, while bringing unprecedented economic growth, has also resulted in a growing social ______, with affluent newcomers often remaining ______ to the struggles of long-time residents.

The correct answer to the question "The city's rapid expansion, while bringing unprecedented economic growth, has also resulted in a growing social ______, with affluent newcomers often remaining ______ to the struggles of long-time residents." is Option B: disparity ... oblivious.

The other options — A) cohesion ... sensitive, C) integration ... indifferent, D) harmony ... attuned — are incorrect for this GRE Exam Prep question. As explained above: Rapid growth with 'affluent newcomers' versus 'struggles of long-time residents' suggests a negative social divide, making 'disparity' fit. The newcomers' lack of awareness implies they are 'obliviou…