Raxit85
Visionaries believe that integrated solution shops, where different specialties converge in a coordinated way to diagnose a patient as accurately as possible, are the future of hospitals but more research is needed to determine that this structure is or is not more efficient than the form in which the hospitals are divided by specialties.
A) are the future of hospitals but more research is needed to determine that this structure is or is not
B) is the future of hospitals but more research is needed to determine if this structure is
C) are the future of hospitals but that more research is needed to determine that this structure is
D) are the future of hospitals but that more research is needed for determining if this structure will be
E) are the future of hospitals but that more research is needed to determine whether this structure is
Alright, you can see the splits of is and are. If we ignore the modifier, we can clearly see that "integrated solution shops" are being talked about. Hence, we scratch option B.
We also see that there is a parallelism issue:
Visionaries believe X but Y.
Hence the structure of X and Y should be similar. We can see that X starts with the pronoun "that" and hence A is also out.
The last issue is of if/whether. We cannot eliminate this choice and so C is out because essentially it says the following: "more research is needed to determine that this structure is more efficient". This changes the meaning. We are changing the meaning by not considering the choice that the structure can be "not more efficient".
. Now, as mentioned earlier, this is a choice between two alternatives and not a condition. Therefore, we are now left with E, which is the correct answer.