2/3 of ALL the world's people live in one of four clusters. What do all 4 clusters generally have in common?

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).

Answercompass direction;

B)  killing off supporters of his father to strengthen his own control. 

Zrst and zrsv would be the correct answer