The correct answer is A. Ladakh.
Ladakh has a total road length of 13,000 km, which is more than the other two regions combined. The roads in Ladakh are mostly unpaved and are often closed during the winter due to snow. However, they are an important part of the region’s infrastructure, as they provide access to remote villages and towns.
Jammu has a total road length of 8,000 km, while Kashmir has a total road length of 6,000 km. The roads in Jammu and Kashmir are generally better maintained than those in Ladakh, but they are still susceptible to damage from landslides and other natural disasters.
In conclusion, Ladakh has the maximum road length of the three regions. The roads in Ladakh are mostly unpaved and are often closed during the winter due to snow. However, they are an important part of the region’s infrastructure, as they provide access to remote villages and towns.