Answer:
They agree with Freud about C. the existence of unconscious mental processes.
Explanation:
The modern-day psychodynamic theory centers on the idea that an individual's behavior is shaped by his her unconscious processes. These are internalized and the individual often does not realize in a conscious way why he/she acts a particular way.
In summary, these theorists believe an individual behaves unconsciously. In this case, we can see this is what the theorists agree with Freud, who believed most of our mental process is unconscious and our behaviors are mainly shaped by our early childhood development and interactions.