Ezra is 3 years old. He ignores people when they are in the room, and if people speak to him he does not make eye contact. He also will not initiate communication, but rather just repeats what someone has said. Finally, Ezra plays with a spinning top for hours. He just spins it, watches it, and when it stops spins it again. Ezra may be showing signs of:a) autism spectrum disorder
b) bipolar disorder
c) ADHD
d) a learning disability