Rowena is 3 years old. They ignore people when they are in the room, and if people speak to them, they do not make eye contact. They also will not initiate communication, but rather just repeat what someone has said. Finally, Rowena plays with a spinning top for hours. They just spin it, watch it, and when it stops they spin it again. Rowena may be showing signs of _____.
1) bipolar disorder
2) a learning disability
3) autism
4) ADHD