What is the primary difference between a 'Pidgin' and a 'Creole' in historical development?

1. ক
   Creoles have native speakers, while Pidgins do not
   
2. খ
   Pidgins are always written, while Creoles are oral
   
3. গ
   Creoles are older than Pidgins
   
4. ঘ
   Pidgins have complex grammar, while Creoles have simple grammar