Which letter follows sākin nūn in الْإِنْسَانُ?

Al-Qāriʿah and Az-Zalzalah — Comparative Tajwīd Practice

• Mīm, giving lip-based idghām
• Khāʾ, giving iẓhār
• Sīn, giving ikhfāʾ
• Bāʾ, giving iqlāb