Consider the following pairs of waterfalls with their claimed region and river:

Waterfall : Region : River (as claimed)

1. Dhuandhar Falls : Western Ghats : Narmada

2. Hundru Falls : Chota Nagpur Plateau : Subarnarekha

3. Gersoppa (Jog) Falls : Western Ghats : Netravati

How many of the above three are correctly matched on BOTH region and river?