In the context of language acquisition, what does the term 'Poverty of the Stimulus' argue?

1. ক
   Children receive insufficient linguistic input to account for their rapid language mastery
   
2. খ
   Language acquisition is entirely dependent on the quality of parental feedback
   
3. গ
   Children learn language primarily through memorizing repetitive sentence structures
   
4. ঘ
   The environment provides more linguistic data than a child can process