Answer:
(C) The ability to automatize driving and dedicate the majority of your attention to the conversation.
Step-by-step explanation:
The Brain is divided into the right hemisphere and the left hemisphere.
In the right hemisphere, ability to carry out certain activities that deals with global spatial arrangement such as Insight, Intuition, 3-D formation, awarness of the environment e.t.c.
In the left hemisphere, language, writing, reasoning is pertinent as well.
These two hemispheres are connected by corpus callosum. Corpus Callosum is a large fiber that of axons.
The right hemisphere of the brain decodes information presented in the left visual field, and the left hemisphere of the brain decodes information presented in the right visual field.
Now, when driving, the retina works in conjunction with the right hemisphere. When image of an object reaches the retina, the size of the object is dependent on distance of object from observer. As soon as the brain receives the sensory information from retina and interprets it, you perceive that the objects would be same size in 3D. This process is automatic and instant.
This phenomena made it possible to automatize driving and dedicate the majority of attention to conversation with passengers when driving.
Cocktail party phenomenon is the ability to focus our attention and gaze on one event or a particular task while blocking out background noise in such event or irrelevant stimuli in the task.