_________ provides pleasure and excitement and develops our physical, mental and social abilities. 

Play is enjoyable and can cause the body's natural feel-good hormones, endorphins, to be released. Endorphins help people feel better overall and can even temporarily make pain go away. Playing chess, solving puzzles, or engaging in other enjoyable mental challenges can assist to improve memory and brain function. Playing with family and friends promotes social connection, which can help prevent sadness and stress. Children learn verbal communication, body language, limits, cooperation, and teamwork through play. You continue to hone these abilities as adults through play and playful interaction. When you play together as adults, you are following exactly the same behavioral patterns that help children's brain development. Therefore, option D is the right answer.