Choose the correct answer

What does the source statement لائے نفی در لفظِ مضارع ہیچ عمل نکند establish about لَا?

Negative Present Tense (Mudhaari' Manfi) - Active and Passive

• It makes the meaning negative without changing the displayed verb form
• It drops every inflectional Nūn
• It changes the final vowel to fatḥah
• It converts the verb into the past tense