Geomorphologically, the Great Indian Plains are known to possess the following distinct features. Which among these is/are true?

1. The Tarai belt is characterised by excessive dampness and ill-drained areas.

2. The Bhabar belt consists of deposits in the form of alluvial fans and is highly suited for agriculture.

3. Thali is an elevated piece of land in the upper Ganga-Yamuna Doab.

Identify the correct answer from the options given below.