Of the following examples, who would be pursuing a dissertation research topic reflecting the ...

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 womens roles and abilities
  b. Jonah, who is researching the relationships between the introversionextroversion 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