Shimla
Mandi
Kullu
Both (A) and (B)
Answer is Wrong!
Answer is Right!
The correct answer is: B. Mandi
Mandi district shares its boundaries with 10 other districts of Himachal Pradesh: Chamba, Kullu, Lahaul and Spiti, Kinnaur, Shimla, Sirmaur, Solan, Una, and Hamirpur.
Shimla district shares its boundaries with 8 other districts of Himachal Pradesh: Kullu, Mandi, Sirmaur, Solan, Una, Hamirpur, Bilaspur, and Kangra.
Kullu district shares its boundaries with 7 other districts of Himachal Pradesh: Mandi, Shimla, Lahaul and Spiti, Kinnaur, Chamba, Kangra, and Solan.
Therefore, Mandi district shares the boundaries with the maximum number of districts in Himachal Pradesh.