What Northern Thai language, once the script of the Lanna Kingdom, is still used in religious contexts?

• A Tai Tham
• B Lanna script ✓
• C Tai Lue
• D Tai Dam

The Lanna script (Tua Mueang) is the traditional writing system of the Northern Thai language, closely related to the Burmese and Mon scripts, still used for Buddhist palm-leaf manuscripts.