Rita's Parents Are Concerned About the Fact That She Is

Multiple Choice

Rita's parents are concerned about the fact that she is not speaking as well as her older brother did when he was two years old. At a visit to the pediatrician, Rita's parents learn that her speech delay is likely due to her frequent ear infections, which have at times impaired her hearing. This is an example of the concept of

A) cumulative development.
B) continuous development.
C) holistic development.
D) plasticity.