Final answer:
The function most likely controlled by the representational hemisphere of the cerebrum is painting a picture, as this hemisphere is associated with creativity and spatial abilities.
Step-by-step explanation:
The function most likely controlled by the representational hemisphere, which is the right hemisphere in most people, would be b. Painting a picture.
The cerebrum is divided into two hemispheres, each responsible for different functions. The left hemisphere is commonly associated with logic, analytical thought, and language, which includes skills such as giving a speech, answering questions, and balancing a checkbook.
On the other hand, the right hemisphere is associated with creativity, intuition, and spatial ability, making it more involved in tasks like painting a picture, recognizing faces, or interpreting music.
Each hemisphere controls the opposite side of the body due to the crossing of nerve fibers in the brainstem, which is why the left hemisphere controls the right side of the body, and the right hemisphere controls the left side. Notable is that this arrangement is not absolute, and the hemispheres often work together; the brain exhibits plasticity and can adapt certain functions if needed.