In Freud's Theory of Development, If a Person Becomes Fixated

In Freud's theory of development, if a person becomes fixated at a particular stage:

A) that person will not be able to become a fully mature person.
B) that person must skip that stage and come back at a later date to resolve it.
C) that person will achieve a healthy role in society.
D) they will inevitably develop undesirable latent characteristics.