GMAT Sentence Correction (SC) | Re: Researchers are using computer images to help surgeons

Here are two SC focusing on the usage of 'help'

Researchers are using computer images to help surgeonsplan difficult operations and to develop programs that will work for doctors and nurses in the same way that flight simulators do for pilots, letting medical personnel practice their techniques and test their reflexes before they ever see a patient.
A. plan difficult operations and to develop programs that will work for doctors and nurses in the same way that flight simulators do
B. plan difficult