The phrase "loya jirga" means "a great assembly" and it's a type of a meeting when a leader of state is chosen when the leader cannot be chosen in an election.
The phrase is in Pashto - so let's see where Pashto is spoken! in afghanistan and Pakistan so out of the options a) is the correct one
If you could drop Mount Everest (height: 8848 m) to the bottom of an ocean trench, would its summit reach the level of the ocean's abyssal plains? No, the Abyssal Plain is 4500 m down.