Which of the Following Is NOT True Regarding the Case

Multiple Choice

Which of the following is NOT true regarding the case of Isabelle, the child raised in isolation and studied by the sociologist Kingsley Davis?

A) Isabelle was an illegitimate child born in the 1930s to a deaf-mute mother.
B) Isabelle was kept secluded from the rest of the world in a dark room of her house.
C) Isabelle's behavior was primitive and bizarre at the time she was rescued by social workers.
D) Isabelle was delighted by the presence of strangers and warmly greeted the social workers who had come to rescue her.
E) Isabelle made rapid progress through the developmental stages once she began interacting with others.