What do ‘form oriented language inputs’ refer to ?

The correct option is Use of vocabulary, pronunciation and grammar.

Explanation:

In language teaching and second language acquisition, language inputs are generally categorized based on their focus: whether they emphasize the meaning/message (meaning-oriented) or the linguistic structure and mechanics (form-oriented).

1. Form-Oriented Language Inputs: These focus specifically on the formal structural elements of a language. This includes learning vocabulary (lexicon), pronunciation (phonetics/phonology), grammar rules (syntax and morphology), and spelling. The goal is to build structural accuracy and linguistic competence.

2. Meaning-Oriented Language Inputs: These focus on the conceptual content, context, and message being communicated rather than the individual words or grammatical structures used.

Therefore, "form oriented language inputs" refer directly to the use of vocabulary, pronunciation and grammar.