Read the statements below about English language teaching. Which of them are correct?

I.In phonetics, vowel sounds tend to be more variable than consonant sounds because they depend more on tongue height, tongue position, and lip shape.

II.Interculturality in English teaching encourages students to compare cultures, reflect on their own cultural identities, and understand cultural diversity in communication.

III.Children's literature in English is not recommended for learners in basic education, as it does not support the development of listening and reading skills.