Private means you manage it and managed means that someone else manages it
It is not a or b, because it helps kids of all skill levels. Because of this, your answer should be C, because Piaget believed that teaching should be done through actually teaching students different concepts, instead of making them just know the answers. That is what cooperative learning helps do.
Answer: Life is so hard because nobody is perfect.
Explanation: If everybody were perfect, then life wouldn’t be so hard because people would know how to handle it, and people wouldn’t make mistakes, so life’s mistakes would never happen.