A 26-month-old child displays negative behavior, refuses toilet training, and often shouts, "No!" when given directions. Using Freud's stages of psychosexual development, a nurse would assess the child's behavior is based on which stage?

A) Oral
B) Anal
C) Phallic
D) Genital

In Freud's stages of psychosexual development, the anal stage occurs from age 1 to 3 years and has, as its focus, toilet training and learning to delay immediate gratification. The oral stage occurs between birth and 1 year, the phallic stage occurs between 3 and 5 years, and the genital stage occurs between 13 and 20 years.