The correct answer is (c), Ladakh.
The Border Roads Organisation (BRO) has constructed the worldâs highest motorable road in Ladakh, connecting Leh to Khardung La Pass. The road is 47.5 km long and is located at an altitude of 17,582 feet (5,369 meters). It was opened to the public in 2005.
The other options are incorrect. Arunachal Pradesh is a state in northeastern India. Sikkim is a state in northeastern India. Himachal Pradesh is a state in northern India.
The Leh-Khardung La road is a major tourist attraction in Ladakh. It is a popular destination for trekking, mountaineering, and other outdoor activities. The road is also used by the Indian military to transport supplies to its troops stationed in Ladakh.
The Leh-Khardung La road is a challenging drive. The road is narrow and winding, and it is often covered in snow and ice. The road is also prone to landslides. Drivers must be careful when driving on the Leh-Khardung La road.