According to Psychodynamic Principles, a Little Boy Who Continuously and Mistakenly

According to psychodynamic principles, a little boy who continuously and mistakenly calls his teacher "Mom" probably

A) has been influenced by the Thanatos instinct of sex and pleasure.
B) has not successfully completed the oral and anal stages of development.
C) is making an age-appropriate developmental mistake.
D) has some unconscious conflicts concerning his mother.