Choose the correct answer

In which of the following forms does لَمْ apply a Sukoon (جزم) to the final root letter?

Rule of Past Absolute Negation with "Lam" (لَمْ) & Weak Letters

• يَفْعُلُوْنَ
• أَفْعُلُ
• تَفْعُلِيْنَ
• يَفْعُلْنَ