Medulla oblongata has reflex centers for vital tasks like breathing, heart beat, blood pressure, coughing, swallowing, hiccuping, sneezing, vomiting, digestion etc.
Cerebellum is involved in precision in muscular coordination, balance and position of the body in space.
The cerebrum is responsible for thinking, reasoning and problem solving. Hence, this option is correct.
It is involved in regulation of temperature, blood pressure, hunger, thirst, aggression, pleasure and pain.
The cerebrum is responsible for thinking, reasoning and problem solving. Hence, this option is correct.