Which of the Following Is a Warning Sign That a Child

Which of the following is a warning sign that a child has been sexually abused?

A) William, a 7-year-old, spends most of his time playing indoors rather than outdoors.
B) Raj, a 6-year-old, starts spending more time with his siblings rather than with his school friends.
C) Celine, an 8-year-old, becomes less talkative than before and shrinks away from physical contact.
D) Irene, a 9-year-old, starts to face difficulty in learning new languages and receives poor grades in language tests.