The ability of neuroscientists to pinpoint the exact locations in the brain where complex sensory responses to a variety of stimuli occur, such as a logic-based board game or a series of violent images, have become ever more precise.A)The ability of neuroscientists to pinpoint the exact locations in the brain where complex sensory responses to a variety of stimuli occur, such as a logic-based board game or a series of violent images, have become ever more precise
B)The ability of neuroscientists has become ever more precise in pinpointing the exact locations in the brain where complex sensory responses to a variety of stimuli occur, such as a logic-based board game or a series of violent images
C)Neuroscientists have become able to pinpoint ever more precisely the exact locations in the brain where occur complex sensory responses to such a variety of stimuli as a logical puzzle or violent images
D)Neuroscientists have become ever more precise in their ability to pinpoint the exact locations in the brain where occur complex sensory responses to a variety of stimuli, like a logical puzzle or violent images
E)Neuroscientists’ ability to pinpoint the exact locations in the brain where complex sensory responses occur to a variety of stimuli such as a logic-based board game or a series of violent images has become ever more precise
I was gonna go with C, which is correct but 'logical puzzles' tipped me over to E as 'puzzles' is nowhere mentioned in the original sentence.