সিগমুন্ড ফ্রয়েড ছিলেন একজন-

ইতিহাসবিদ

অর্থনীতিবিদ

রাষ্ট্রবিজ্ঞানী

মনোবিজ্ঞানী

Explanation:

Correct Answer is: মনোবিজ্ঞানী

Sigmund Freud (1856 to 1939) was the founding father of psychoanalysis, a method for treating mental illness and also a theory which explains human behavior.

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