As a result of Karl Lashley’s work in the field of anatomy, neuroscientists now believe that the learned information encoded in 86 billion of the neurons found in a human brain are primarily stored in merely four small parts of the brain, the prefrontal cortex, hippocampus, amygdala, and cerebellum.
(A) 86 billion of the neurons found in a human brain are primarily stored in merely
(B) 86 billion of the human brain’s neurons are primarily stored in a mere
(C) the 86 billion neurons found in human brains are primarily stored in merely
(D) the 86 billion neurons found in the human brain is primarily stored in a mere
(E) 86 billion of the human brain’s neurons is primarily stored in merely
First and most importantly notice the usage of 'is' vs 'are', since the main subject of the sentence is 'the learned information encoded' the usage of 'are' is incorrect. So A, B, C are out. In D, to say the least 'in a
mere four small parts of the brain, the prefrontal cortex, hippocampus, amygdala, and cerebellum' is incorrect - it should be 'in merely'
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