What is the subtle form of bias in which individuals consciously endorse the principle of racial equality and regard themselves as non-prejudiced but also possess unconscious negative feelings an dbeliefs about particular minority groups?

Aversive Racism                                                                                            

Explanation:

Aversive racism: The term aversive racism is known as a theory which was introduced by John F. Dovidio and Samuel L. Gaertner and is defined as the process through which an individual experience negative evaluation towards a particular ethnic or racial minorities via persistent or continuous interaction avoidance with the different ethnic or racial group. It is distinguished as having an ambivalent and complex attitude or expressions towards the other races.

In the question above, the given statement signifies the aversive racism.

i would say b. research typically uses a variety of sources