The answer is most likely (c.) the spinal cord
The spinal cord is the spine that connects all parts of the body to the brain. It also transmits sensory neurons to the brain.
Among the answers, the amygdala influenced the emotions the most. It is located near the base of the brain, its function is to link perceptions and thoughts with emotional meaning. Thalamus, on the other hand, regulates the consciousness, sleep, and alertness that may affect the person's emotion. And prefrontal cortex indicates to the person's personality.
