Only One of the Following Statements Is True About Emotional

Only one of the following statements is true about emotional and behavioral disorders.Which one is true?

A) If a student exhibits only internalizing behaviors rather than externalizing behaviors) , she or he probably does not need to be evaluated for special services because she or he is not a danger to others.
B) It is possible to be genetically predisposed toward having an emotional or behavioral disorder yet not show signs of a disorder until adolescence.
C) There is a high dropout rate for students with emotional and behavioral disorders because they often come from families who make them work to support themselves at an early age.
D) Almost all emotional and behavioral disorders are due to environmental factors.