This is the best of the three.

Correct if it is not

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).

None of them. they are likely to occur on any plate boundary

Cthat is the answer

Economy is the answer