Explanation:

All statements are correct.

River Basins of Afghanistan

• A new study has revealed interesting insights about water in Afghanistan, which has suffered recurrent droughts since the 1990s.

• Afghanistan is multi-ethnic landlocked country located in Central Asia with Iran to the west and Pakistan to the east.

• Capital- Kabul

• Physiographic region- The central highlands is actually a part of the Himalayan chain including the main Hindu Kush range.

• Major pass- Shebar pass, Khyber pass (It leads to Indian subcontinent)

• Drinage system- It is enclosed within the country, only the rivers in the east reach the Arabian Sea.

• The researchers divided Afghanistan into five river basins and found that two of the five are the major water sources for the country.

• Kabul river is the largest drainage system in the south-eastern region.

• The river is also known as Cophen, it originates in the Paghman Range and flows eastward to join the Indus river in Pakistan.

• The Panj-Amu River Basin is part of the Amu Darya, which is the largest river in Central Asia.

• Amu Darya- It is also known as the Oxus River, and one of the longest rivers in Central Asia that originates in Pamir mountains and flows into Aral sea.

• Panj river- It is one of the major tributaries of the Amu Darya that originates in the Pamir Mountains, near the borders of Afghanistan, Tajikistan, and China.

Hence option 3rd is correct.