CTET Class I to V 7 Jan 2022 Paper

A learner in a village in the state of Jharkhand knows her mother tongue and Hindi, the language of home and in her neighbourhood. She learns English in school. Which of the languages come under language acquisition and which of the languages come under language learning?
I. Mother tongue and Hindi come under language acquisition
II. English comes under language learning
III. Hindi comes under language learning
IV. All the three languages come under language acquisition