The treatment of English as a lingua franca in the BNCC affects both the understanding of linguistic variation and the relationship among the different dimensions of language learning. 

Analyze the statements below:

I.Treating English as a lingua franca challenges the idea that legitimate use of the language belongs exclusively to speakers from particular national territories.
II.Linguistic knowledge should be mastered before oral, reading and writing practices, since the BNCC treats grammatical knowledge as a prerequisite for meaningful language use.
III.The intercultural dimension includes reflection on relations among language, identity and culture and on the social effects associated with the global circulation of English.

It is correct to state that: