Manjeet of Class V speaks in different ways to his teacher, to his friends and also to a two-year-old child. It means Manjeet knows how to use language in social situations. What is this attribute of a language known as?

Correct option is A

Pragmatics.
In Manjeet’s case his ability to adjust his language use according to the specific listener(teacher, friends, two-year-old child) demonstrates his grasp of pragmatic skills.
 Pragmatics is the attribute of language that deals with how language is used in social contexts and how meaning is conveyed beyond the literal interpretation of words. It involves understanding and using language appropriately in different situations, taking into account factors like social norms, cultural context, and the relationship between speakers.