Which of the following evidence prove/s that the Himalayas are still rising?

1. The frequent occurence of earthquakes in the Himalayan region shows that the Himalayas have not yet attained an isostatic equilibrium and they continue to rise further.

2. The Himalayan rivers have small basins and catchment area.

3. Some of the fossil formations found in the Shiwalik hills are also available in the Tibet Plateau.

Select the correct answer using the codes given below.