The correct answer is B. Cerebrum.
The cerebrum is the largest part of the human brain and is responsible for higher functions such as thought, memory, language, and consciousness. It is divided into two hemispheres, the left and right, which are connected by a bundle of nerve fibers called the corpus callosum. The left hemisphere is typically dominant for language and speech, while the right hemisphere is typically dominant for spatial reasoning and visual perception.
The cerebellum is located at the back of the brain and is responsible for coordination and balance. It also plays a role in motor learning and memory.
The medulla oblongata is located at the base of the brain and is responsible for controlling involuntary functions such as breathing, heart rate, and blood pressure.
None of these options are the center of intelligence in the human brain.