Of the Following Examples, Who Would Be Pursuing a Dissertation

Of the following examples, who would be pursuing a dissertation research topic reflecting the contributions of Alfred Adler?

A) Megan, who is researching the extent to which men envy women's roles and abilities
B) Jonah, who is researching the relationships between the introversion-extroversion continuum and artistic creativity
C) Logan, who is researching the level of self-actualization of adolescent children of immigrant parents
D) Alexis, who is researching the effects of birth order on professional and financial success