The question is incomplete as it does not have the options which are:
A. dorsolateral prefrontal cortex.
B. hippocampus.
C. amygdala.
D. anterior cingulate cortex.
Answer:
Option-D
Step-by-step explanation:
The cingulate cortex is the part of the limb lobe of the brain and lies in the above portion of the corpus callosum. The cortex is divided into two parts which are the posterior and anterior portion.
The cingulate cortex is involved in the decision making, attention allocation and autonomic functions like the heart rate and blood pressure.
In the question since the person is not able to make the decisions and solve the problems, therefore, the part of the brain that shows the decreased activity will be the anterior cingulate cortex.
Thus, the anterior cingulate cortex is the correct answer.