Answer:
fMRI
Explanation:
Functional MRI (magnetic resonance imaging) is defined as the technique used to measure the brain activity with the blood flow in the brain. This technique is based on the principle that neuronal activation and blood flow are coupled with each other.
The Frank has studied the effect of concussion on memory.The functional MRI technique can be used to detect the brain area that increases when victim perform memory task.
Thus, the correct answer is option (b).
