I'm Tony. My best friends are Frank and Cindy. We often do many things together. Frank lives next to my home and we are in the same class. He is thirteen years old and tall and of medium build. He has curly hair and blue eyes. He's good-looking and very clever. He's good at math and often helps me with my homework. He likes wearing black pants and yellow T-shirts. Cindy doesn't go to my school. She's eleven years old. She is thin and of medium height. She has curly blonde hair and her eyes are brown. She is good-looking, too, but a little bit shy. She is good at playing the guitar. Her favorite subject at school is music. She often teaches Frank and me to play the guitar after class. The three of us have great fun together, and we help each other and sometimes play video games at my house. What things do the three children do together? They   _  .
play baseball play video games play the guitar both B & C