Final answer:
Hippocrates option (B), the 'father of Western medicine,' was the first person to suggest that psychological disorders should be treated like any other disease, setting the foundation for future medical models in psychology.
Step-by-step explanation:
The person who first postulated the idea that psychological disorders can be treated like any other disease was Hippocrates option (B), known as the "father of Western medicine." Unlike his contemporaries who often ascribed diseases to supernatural causes, Hippocrates believed that diseases, including those of the mind, had natural causes and should be treated as such. While figures like Sigmund Freud and Wilhelm Wundt later made significant contributions to the field of psychology, it was Hippocrates' early work that laid the foundation for the medical model of treating mental disorders as one would other physical ailments.