When you travel to the Himalayas, you will see the following: 1. Deep ravines | 2. U-curved river course. 3. Parallel mountain ranges. 4. Sharp slopes responsible for landslides. Which of the above can be said to be evidence of the young fold mountains (newly folded mountains) of the Himalayas?

• A. 1 and 2
• B. 1,2 and 4
• C. 3 and 4
• D. all these