Final answer:
The principle of feminist psychology that focuses on societal transformation is the commitment to social change, which aims to promote social justice and correct gender-based inequalities.
Step-by-step explanation:
The principle of feminist psychology that is most aimed at advancing a transformation in society is B. Commitment to social change. This principle embodies the political and philosophical aims of feminism to end sexism, promote social justice, and correct the traditional roles gender has played in societal development. A commitment to social change encompasses the goal to not just understand or critique society but to take action toward changing structural inequalities and creating a more equitable world where everyone's interests and perspectives are considered.