Kate and Jon are delighted at the grown - up behavior of their four year olds , and give them each a thumbs up , and a " good job ! " The children climb into the van , Cara and Mady strap themselves in , and Kate and Jon each take three to strap in . Once all the children are safely in the van , Kate climbs into the passenger seat , and Jon climbs into the driver 's seat . The van seems so much cleaner and smells so much better now that the potties have all been removed . Kate puts on a CD of kid 's songs , and the whole family begins to sing along .
According to the above context, choose the best option to answer the following question.
Question: How do they feel about their kid 's behaviors ?
Options:
- They were angry at them .
 - None of the above choices .
 - They were proud of them .
 - They were annoyed at them .


They were proud of them .