What are coastal coniferous or temperate rain forests?

Temperate rainforests are coniferous or broadleaf forests that occur in the temperate zone and receive heavy rainfall. The moist conditions of temperate rain forests generally support an understory of mosses, ferns and some shrubs.

( Source of Image : Google )

a temperate rainforest is shown below.

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).

Ithink the answer to that would be b):