While Margaret Floy Washburn may have been the first woman to receive a Ph. D. in psychology in the United States (in 1894), the first African-American woman to do so was in 1934 at the University of Minnesota. a. Inez Beverly Prosser
b. Ruth Howard
c. Margaret Mahler
d. Anna Freud

b. Ruth Howard

Explanation:

Ruth Winifred Howard Beckham -

She is the very first African American women to get doctorate degree in the field of Psychological association .

Ruth Winifred Howard Beckham is very popular for the psychological work ,  in order to help the children who require genuine needs .

She was the very active participant in the  the American Association of University Women , the International Council of Women Psychologists ,  the American Psychological Association .

Hence , from the given scenario of the question ,

The correct answer is b. Ruth Howard .

answer; /// the above statement is ( true);

answer; /// charles darwin;